JUNIOR RESEARCH FELLOWSHIPS
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28 Mar 2013
ICMR JRF Notification last date April 30th 2013
20 Mar 2013
9 Mar 2013
DBT JRF 2013 Notification
Department of Biotechnology
(Government of India)
Ministry of Science & Technology
DBT-JUNIOR RESEARCH FELLOWSHIP (DBT-JRF)
IN BIOTECHNOLOGY
(Co-ordinated by National Centre for Cell Science, Pune)
DBT JRF programme has been started from the year 2004. 275 JRFs are selected through Biotechnology Eligibility Test (BET), being conducted this year by NCCS, Pune. Fellowships are provided for an initial period of 3 years which could be extended up to five years. Contingency grant of Rs.30, 000/- per fellow per annum is also provided. Top ranking 100 students in merit are given option to join any institute of their choice in the country for pursuing Ph.D. Option is given to next 175 candidates in merit list to join DBT supported PG teaching universities and DBT institutes.
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Notification:
Important dates
LAST DATE: 29.03.2013
EXAM DATE 21.04.2013
DBT JRF Model paper
Section A
1. The immunoglobulin fold is made up of(A) seven alpha-helical segments
(B) a beta-barrel
(C) a sandwich of two parallel beta sheets
(D) a sandwich of two antiparallel beta sheets
2. RNA is analyzed for the location of hairpin folds.
Which of the following sequences could form a minihairpin?
(A) AGGUUUCCU
(B) AAAAAAAAA
(C) AGGUUUGGA
(D) AGGUUUAGG
3. Increasing the concentration of which of the following
would most effectively antagonize the inhibition of
protein synthesis by puromycin?
(A) ATP
(B) eIF2.GTP
(C) aminoacyl-tRNAs
(D) peptidyl-tRNAs
4. Enzymes catalyze reactions by
(A) binding regulatory proteins
(B) covalently modifying active-site residues
(C) binding substrates with great affinity
(D) selectively binding the transition state of a reaction
with high affinity
5. Which of the following is a common reaction used for
the formation of phosphatidyl ethanolamine in bacteria?
(A) decarboxylation of phosphatidyl serine
(B) demethylation of phosphatidyl choline
(C) reaction of ethanolamine with CDP-diacylglycerol
(D) reaction of CDP-ethanolamine with CDPdiacylglycerol
6. Holiday junction is observed during
(A) Mitosis
(B) Interphase
(C) Recombination
(D) DNA Repair
7. In humans, XX males and XY Females are rare, such
rare sexes are due to
(A) Deletion of X chromosome
(B) Deletion of Y chromosome
(C) XY translocation
(D) Duplication of X chromosomes
8. Induction of b-galactosidase activity by IPTG is due to
(A) Stimulation of lac repressor function
(B) IPTG binding to lac operon & inducing
transcription
(C) IPTG binding to lac I gene product and inhibiting
its activity
(D) Inhibition of b-galactosidase degradation
9. Which of the following enzymes doesn’t require a
primer?
(A) RNA dependent DNA polymerase
(B) DNA dependent DNA polymerase
(C) DNA dependent RNA polymerase
(D) Taq DNA polymerase
10. Which one of the following antibiotics attaches to 50S
ribosome and inhibits its peptidyl-transferase activity?
(A) Penicillin
(B) Chloramphenicol
(C) Trimethoprim
(D) Amphotericin
11. DNA from a host sample can be amplified by a process
known as the polymerase chain reaction (PCR). Which
of the following is required for PCR?
(A) Knowledge of the genetic sequence to be
amplified
(B) A single nucleotide primer
(C) A universal probe to detect the amplified product
(D) A heat-sensitive DNA polymerase enzyme
12. Gluconeogenesis is not capable of making glucose from
(A) adenine
(B) lactate
(C) Acetyl CoA
(D) palmitate
13. Glycosylation of proteins occurs in the
(A) peroxisome
(B) Mitochondrion
(C) lysosome
(D) endoplasmic reticulum
14. The 20 different amino acids found in proteins are
normally coded by
(A) 59 codons
(B) 60 codons
(C) 61 codons
(D) 63 codons
15. How many microliters of 0.1 M solution of sodium
chloride will make 10 ml of 5 mM sodium chloride?
(A) 200
(B) 100
(C) 500
(D) 10
16. Which of the following is NOT found inside the
eukaryotic nucleus?
(A) Nucleolus
(B) Cajal bodies
(C) PML bodies
(D) Centrosomes
17. Haemolytic disease of the newborn due to Rhesus
incompatibility depends upon the
(A) mother possessing Rh antigens not present on the
baby’s red cells
(B) transplacental passage of IgM anti-Rh antibodies
(C) transplacental passage of IgG anti-Rh antibodies
(D) production of cytotoxic antibodies in the baby
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18. Hemoglobin shows sigmoidal curve for oxygen
saturation. What is the shape of curve for myoglobin
oxygen-binding ?
(A) Linear
(B) Hyperbolic
(C) Sigmoidal
(D) Bell shape
19. For transcription to occur in the lactose operon, an
inducer must be present so that
(A) the repressor can bind to the operator
(B) the repressor does not bind to the operator
(C) the inducer can bind to the operator
(D) the inducer does not bind to the operator
20. Which of the following is not a feature of mutagenic
action of 5-Bromo-deoxyuridine?
(A) It acts on growing cells
(B) It forms base pair with A in its rare form
(C) It induces transitions
(D) It affects only one strand of DNA
21. The action potential results from
(A) decrease in negative charge inside the nerve fibre
(B) increase in positive charge outside the nerve fibre
(C) opening of voltage-gated sodium channels
(D) activation of the sodium-potassium pump
22. A recombinant vaccine is available for which one of
the following cancers?
(A) Adult T cell leukemia
(B) Colon carcinoma
(C) Glioblastoma
(D) Cervical carcinoma
23. A patch–clamp device is used to
(A) measure the strength of an electrochemical
gradient
(B) study the properties of individual
neurotransmitters
(C) infuse different kinds of ions into an axon
(D) study the properties of individual membrane
channels
24. Which type of neurons among the following are
predominantly lost in Alzheimer’s disease?
(A) Cholinergic
(B) Serotonergic
(C) Noradrenergic
(D) Histaminergic
25. Circadian rhythm is regulated by the
(A) hypothalamus
(B) suprachaismatic nucleus
(C) amygdala
(D) basal ganglia
26. Which one of the following is the natural host for
pseudo- rabies virus?
(A) Dog
(B) Man
(C) Swine
(D) Horse
27. Which one of the following is the causative agent of
fowl cholera?
(A) V. cholera
(B) P. multocida
(C) E. coli
(D) S. Pullorum
28. The wavelengths of light that penetrate the least into
the ocean are
(A) red and violet
(B) red and yellow
(C) blue and brown
(D) green and blue
29. Zooplankton that spend only a portion of their lives as
plankton are called
(A) holoplankton
(B) meroplankton
(C) benthoplankton
(D) hemiplankton
30. Most of the sand and mud dwelling benthic organisms
are
(A) grazers
(B) producers
(C) detritus feeders
(D) predators
31. The oceanic depth that represents equilibrium between
oxygen and carbon dioxide production is termed the
_________ depth.
(A) equilibrium
(B) compensation
(C) decomposition
(D) anaerobic
32. Which of the following is not an adaptation of saltwater
fish to the environment in which they live
having a higher salinity than their bodies?
(A) They constantly drink seawater
(B) They excrete salt through their gills
(C) They produce a small amount of urine
(D) They store salt in their skin
33. Ca- Ca distance plot might be useful in
(A) Identifying secondary structures in proteins
(B) Identifying globular domains in a protein
(C) Identifying active sites in enzymes
(D) For docking of inhibitors on protein’s surface
34. A coin is tossed three times, what is the probability that
exactly one heads turns up
(A) 0.333
(B) 0.25
(C) 0.50
(D) 0.375
35. WebIn is a sequence submission tool provided by
(A) NCBI
4
(B) EMBL
(C) EBI
(D) RCSB
36. National Center for Biotechnology Information
(NCBI) was established on November 4, 1988 as a
division of the
(A) National Library of Medicine (NLM)
(B) National Institutes of Health (NIH)
(C) European Bioinformatics Institute
(D) ExPASy
37. The parts of proteins having the highest flexibility are
(A) a-helices
(B) b-sheets
(C) peptide bonds
(D) surface side chains
38. In a typical E. coli fermentation, the major barrier to
the transport of oxygen from gas bubble to the cells in
the broth is in the
(A) gas film
(B) liquid film
(C) interphase between gas and liquid film
(D) diffusion of oxygen at the cell surface
39. Identify the method from the following that is not used
for KLa determination.
(A) Pulse and shift method
(B) dynamic method of gassing out
(C) static method of gassing out
(D) overall gas balancing method
40. In a chemostat operated at steady state following
Monod growth kinetics, the inlet substrate feed
concentration is doubled at time t=0, then in the new
steady state concentration of biomass (X) and residual
substrate (S) in a chemostat will be such that
(A) S is higher, X does not change
(B) X is higher, S does not change
(C) Both X and S are higher
(D) Both X and S remain the same
41. The film heat transfer coefficient (h) for cooling water
flowing in the cooling tubes of a bioreactor
will…………………. as the water flow rate is
doubled
(A) double
(B) not change
(C) decline
(D) increase less than two fold
42. For water flowing in a circular pipe, the flow rate
increased so that it goes from laminar to turbulent
flow then the ratio of the velocity at the centre line to
velocity near the wall will
(A) increase
(B) decrease
(C) remain unchanged
(D) be unpredictable
43. Liquid is being pumped using a centrifugal pump, if the
outlet valve is suddenly closed then,
(A) The outlet pipe would burst
(B) The outlet pressure would increase
(C) The pump would stop running
(D) The outlet pressure would remain the same
44. When terminal velocity is reached, the net downward
force due to gravity, on the object is
(A) greater than the upward buoyancy force and drag
force
(B) lesser than the upward buoyancy force and drag
force
(C) not related directly to upward buoyancy force and
drag force
(D) exactly balanced by the upward buoyancy force
and drag force
45. A chemostat is run with a feed rate of 1 litre/h when the
volume of the reactor is also 1 litre. At steady state
the doubling time of the cells in the chemostat is
……..h
(A) ln 2
(B) log 2
(C) one
(D) two
46. Which one of the following promoters is not derived
from Agrobacterium?
(A) CaMV 35S
(B) nos
(C) ipt
(D) virD
47. Which of the following is incorrect with respect to
modification of Mendelian dihybrid ratio?
(A) Complementary gene interaction : 9:7
(B) Recessive epistasis: 9:3:4
(C) Dominant epistasis: 12:3:1
(D) Additive gene interaction: 10:6
48. An example of a co-dominant marker is
(A) AFLP marker
(B) ISSR marker
(C) RAPD marker
(D) SSR marker
49. A mapping method for identifying markers linked to
trait of our interest in a natural population is
(A) Linkage mapping
(B) Association mapping
(C) Transcriptome mapping
(D) Physical mapping
50. The number of phenotypes in the F2 of the dihybrid
will be
(A) 2
(B) 3
(C) 4
(D) 8
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Section B
51. Suppressor tRNA mutations are those in which
(A) Transcription of tRNA genes is suppressed
(B) Translation from mRNA is suppressed due
to absence of tRNA
(C) Amino acid is incorporated in place of a stop
codon due to mutation in anticodon region
of tRNA
(D) Charging of tRNA with cognate amino acids
is suppressed due to mutation in amino acyl
tRNA synthase enzyme
52. Which of the following media is best suited for
the selective growth of E. coli with genotype:
Str+ his- leu- lys- ?
(A) Minimal medium with thiamine, histidine,
leucine and lysine
(B) Luria Agar
(C) Minimal medium with thiamine and
streptomycin
(D) Minimal medium with thiamine, histidine,
leucine, lysine and streptomycin
53. Which of the following amino acids is coded by
maximum number of codons ?
(A) Leucine
(B) Tryptophan
(C) Valine
(D) Alanine
57. Somatic mutation of Immunoglobulin gene
accounts for
(A) Allelic exclusion
(B) Class switching from IgM to IgG
(C) Affinity maturation
(D) V(D)J recombination
58. Which of the following enzymes is NOT used in
pyrosequencing?
(A) DNA Polymerase
(B) Pyrophosphatase
(C) Luciferase
(D) ATP sulfurylase
59. Which of the following statements is not true for
HFr strains of E. coli ?
(A) F factor is integrated in the genome
(B) Chromosomal markers are transferred from
donor to recipient
(C) They act as donors in the cross
(D) Progeny of the cross always becomes F +
60. Which of the following organisms contains a 11
bp specific DNA sequence that acts as selfrecognition
sequence in natural transformation ?
(A) Streptococcus pneumonia
(B) Bacillus subtilis
(C) E. coli
(D) Hemophilus infuenzae
54. In cell cycle, paternal and maternal chromosomes
exhibit a “bouquet stage” during
(A) Leptotene
(B) Zygotene
(C) Pachytene
(D) Diplotene
55. Which of the following cytokines is secreted by
both Th1 and Th2 type of cells ?
(A) IL-2
(B) IL-3
(C) IL-4
(D) IFN-g
56. Processing of transfer RNA involves
(A) cleavage of extra bases from both 3’ and 5’
ends
(B) nucleotide sequence specific methylation of
bases
(C) addition of sequences CCA by a nucleotidyl
transferase
(D) addition of methylated guanosine at 5’ end
61. The amino acid sequence of a novel membrane
protein contains four immunoglobulin-like
domains and six fibronectin-like repeats. This
protein is most likely a
(A) Hormone responsive ion channel
(B) Cell adhesion molecule
(C) G-protein
(D) transcription factor
62. Which one of the following viruses is not
transmitted by the fecal-oral route ?
(A) Hepatitis A Virus
(B) Hepatitis E Virus
(C) Hepatitis D Virus
(D) Enterovirus
63. The earliest marker of the B-cell lineage which
first appears during maturation of the precursor
B cells and remains throughout the life span of
the B cell is
(A) B7
(B) CR1
(C) Class II MHC
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(D) B220 (or CD45)
64. Which of the following repair mechanisms is
absent in a cell arrested in cell cycle?
(A) Transcriptional coupled repair mechanism
(B) Excision repair mechanism
(C) DNA synthesis annealing repair mechanism
(D) Recombination repair mechanism
65. Intracellular transport in mammalian cells
through vesicular fusion is regulated by which
among the following GTPases ?
(A) Rho
(B) Ran
(C) Rab
(D) Ras
66. HSP70 chaperons are not present in which
among the following organelles?
(A) Endoplasmic reticulum
(B) Golgi bodies
(C) Nucleus
(D) Mitochondria
67. Major gluconeogenesis occurs in
(A) Liver and kidney
(B) Liver and heart
(C) Liver and skeletal muscle
(D) Liver and adrenal gland
68. A change in which of the following genes is
responsible for Fragile X syndrome?
(A) FMR1
(B) RELB
(C) FXR1
(D) FAD2
69. Molecular basis of Chediak-Higashi syndrome is
(A) mutation in a protein involved in regulation
of intracellular trafficking
(B) due to deficiency of adenosine deaminase
(C) error in antigen processing
(D) reversal of anergy in self-reactive clones
70. Type III hypersensitivity is mediated by
(A) immune complex deposition
(B) antigen specific T cells
(C) complement cascade
(D) perforin and granzyme
71. Junctional diversity affects primarily the amino
acid sequence in
(A) all CDR equally
(B) CDR1
(C) CDR2
(D) CDR3
72. A child stung by a bee experiences respiratory
distress within minutes and lapses into
unconsciousness. This reaction is probably
mediated by
(A) IgE antibody
(B) IgG antibody
(C) sensitized T cells
(D) complement
73. Neutrophils are attracted to an infected area by
(A) IgM
(B) vascular permeability
(C) phagocytosis of IgE-coated bacteria
(D) aggregation of C4 and C2
74. In the immune response to a hapten-protein
conjugate, in order to get anti-hapten antibodies
it is essential that
(A) the hapten be recognized by helper T cells
(B) the protein be recognized by helper T cells
(C) the protein be recognized by B cells
(D) the hapten be recognized by suppressor T
cells
75. Chromatin loops are formed by periodic
attachment of the following onto the nuclear
skeleton
(A) Histones
(B) MARs
(C) Promoters
(D) Introns
76. Telomeric DNA does not contain
(A) G-rich sequences
(B) Quadruplex
(C) T and D loops
(D) AT rich sequences
77. The ATP required for ligation during base
excision repair is generated from
(A) NAD
(B) Poly (ADP-ribose)
(C) DNA
(D) AMP
78. The covalent modification of histones that is not
known to play a role in regulation of gene
expression is
(A) Poly (ADP-ribosyl)ation
(B) Acetylation
(C) Methylation
(D) glycosylation
79. Okazaki fragments are
(A) RNA primers for DNA synthesis
7
(B) Short DNA fragments after nuclease
digestion
(C) Newly synthesized DNA fragments
(D) Short stretches of DNA attached to RNA
primers on lagging strand
80. The changes in the electrical potential of a
neuron that constitute the action potential occur
in the following order
(A) depolarization-> resting potential –>
hyperpolarization –> resting potential
(B) resting potential –> depolarization->
hyperpolarization – > resting potential
(C) resting potential -> hyperpolarization->
resting potential-> resting potential
(D) resting potential –> hyperpolarization ->
resting potential -> depolarization
81. Suppose you were to treat a normal mammalian
cell with a substance that inhibits the Na-K
ATPase, what would be the most immediate
effect upon the cell ?
(A) there would be no change at all
(B) the cell’s osmotic balance would be
disrupted and the cell would begin to swell
(C) the cell membrane potential would
immediately drop to zero
(D) the cell would very quickly run out of ATP
82. In a population that is in equilibrium, the
proportion of individuals showing the dominant
trait at a given locus having two alleles is 84%.
The frequency of the recessive allele in the
population is
(A) 0.4
(B) 0.3
(C) 0.2
(D) 0.16
83. Developing T cells that react strongly with selfpeptides
bound to self-MHC molecules are
(A) eliminated in the thymus
(B) eliminated in the bone marrow
(C) suppressed in peripheral blood circulation
(D) allowed to function normally
84. Which of the following statements is correct?
(A) T lymphocytes are conditioned by the bone
narrow
(B) B lymphocytes are conditioned by thymus
(C) B cells produce plasma and memory cells
(D) T cells do not produce cytokines
85. What is the force among the following that is
primarily responsible for stabilizing the tertiary
structure of globular proteins?
(A) disulfide bonding
(B) the hydrophobic effect
(C) hydrogen bonding
(D) ionic interactions
86. Which of the following sequences describes the
passage of an action potential in the neuron?
(A) Axon, cell body, dendrite, synaptic cleft
(B) synaptic cleft, axon, dendrite, cell body
(C) dendrite, synaptic cleft, cell body, axon
(D) dendrite, cell body, axon, synaptic cleft
87. In the biological treatment of waste, bacteria
such as species of Acinetobacter and Zoogloea
are considered to play a key role in floc
formation
(A) by the synthesis and secretion of
polysaccharides
(B) since they are acid producers
(C) as they are slow-growing methanogens
(D) since they break down acetic acid into
methane and CO2
88. During primary sedimentation and biological
treatment of waste water, vast quantities of
sludge are generated which are assessed by
sludge volume index (SVI), defined as the
volume occupied by 1 g of sludge after settling
for 30 min in a 1L Imoff cone which measures
the
(A) sludge thickening
(B) sludge stabilization
(C) sludge dewatering
(D) rate of acid utilization
89. Some extremozymes are found to remain active
and stable up to 140°C. The decreased
flexibility and rigidity of the molecule is due to
(A) highly nonpolar core
(B) reduction in glycine content
(C) presence of unsaturated fatty acids
(D) ornithine content
90. Solid state fermentations (SSF’s) involve solid
substrates at low moisture levels or water
activities where
(A) the water content is > 95%
(B) the water content is between 40-80%
(C) the water content is between 4-8%
(D) the water content is 10%
91. The common type of duplication generates a
second copy of the gene
(A) in close proximity of the first copy
(B) in a distant location on a same chromosome
(C) on a different chromosome
8
(D) in any chromosome at random probability
92. A silent substitution
(A) creates a premature stop codon, thus
silencing expression of the gene
(B) substitutes one amino acid for a different
amino acid with similar properties so it does
not affect protein function
(C) changes only one DNA base in a codon
without changing the amino acid sequence
(D) occurs outside the protein coding region in
the 5’- or 3’ untranslated region and thus
does not affect protein function
93. Satellite DNAs are not typically found within
which of the following parts of a chromosome?
(A) heterochromatin
(B) euchromatin
(C) telomeres
(D) centromeres
94. What is the sugar–sugar linkage among the
following in the 5’ cap on mRNA molecules?
(A) 5’-3’
(B) 3’-5’
(C) 3’-3’
(D) 5’-5’
95. Introduction of a non-sense mutation in a
eukaryotic protein coding gene often leads to
(A) retention of mRNA in a nucleus so it is not
translated
(B) increased degradation of the mRNA in the
nucleus
(C) increased degradation of the mRNA in the
cytoplasm
(D) decreased ribosome binding in the
cytoplasm in mRNA due to its shorter size
96. What effect would ‘N’ mutation have on phage
lambda infection?
(A) no effect, infection would proceed as normal
to either lytic or lysogeny pathway
(B) lytic pathway blocked only lysogeny
possible
(C) lysogeny pathway blocked only lytic
pathway possible
(D) complete abolishment of infection, neither
lytic nor lysogeny pathway is possible
97. The bacterial ftsZ gene is required for
(A) septum formation
(B) periseptal annulus formation and
localization
(C) DNA replication
(D) transport of DNA
98. Two plasmids are of the same compatibility
group if they
(A) can co-exist in the same bacterial cell
(B) cannot co-exist in the same bacterial cell
(C) carry the same antibiotic gene
(D) carry the same toxin gene
99. Replication defective retroviruses are most
commonly generated by
(A) recombination and rearrangement of
sequences
(B) mutation at critical sites in viral genes
(C) deletion of a segment of the viral genome
(D) Insertion of the sequences in the viral gene
100. Alu elements are
(A) SINEs
(B) LINEs
(C) retroposon
(D) DNA transposon
101. Telomeres consist of simple sequence repeats of
(A) CA rich strands that interact with protein
(B) GC rich strands that interact with protein
(C) CT rich strands that interact with protein
(D) TA rich strands that interact with protein
102. True activators of transcription are transcription
factors that bind to
(A) other proteins to enhance transcription
(B) promoters
(C) enhancers
(D) promoters and enhancers
103. Position effect variegation describes
(A) phenotypically identical cells with different
genetic elements
(B) phenotypically identical cells with similar
genetic elements
(C) genetically identical cell with different
phenotypes
(D) genetically identical cells with identical
phenotype
104. The U2 snRNA basepairs with
(A) a sequence spanning the exon intron
splicing site
(B) the 3’ splice site of the intron
(C) a sequence spanning the intron exon splicing
site
(D) the branched sequence in the intron
105. Isoelectric point of lysozyme is 9.2. When the
enzyme solution at this pH in water was titrated
with HCl to give a pH of 5, it was observed that
six ionized glutamic acid side chains got
9
protonated. The net charge on the enzyme at pH
6 would therefore be
(A) +5
(B) +6
(C) -5
(D) -6
106. KCN is considered to be one of the potent
poisons. You are doing an animal (mouse)
experiment to test a new KCN sample
synthesized by a chemist. The experiment is
intravenous injection of KCN and checking the
death of mouse. The sample was tested by many
researchers and found to be pure and as potent as
it should be. Although your experimental
procedures were correct you failed to obtain
desired results due to which one of the
following.
(A) KCN resistant mice were used
(B) Dose of KCN is much below the LD50 dose
needed to kill the mice
(C) KCN is being degraded in mice
(D) KCN is immediately filtered by kidney.
107. 6M Guanidium hydrochloride is known to
denature a number of proteins. Such a high
concentration is able to break down the
noncovalent forces sustaining the structure of
proteins by affecting
(A) Electrostatic interactions only
(B) Electrostatic and hydrophobic interactions
(C) Intrapeptide hydrogen bonding only
(D) Electrostatic, hydrophobic, and hydrogen
bonding interactions.
108. Which of the following amino acids is critical in
the folding of proteins due to the slow
isomerization of the peptide bond preceding this
amino acid depending upon the solvent
environment?
(A) Tryptophan
(B) Leucine
(C) Proline
(D) Histidine
109. In peptides the values of dihedral angle phi is
based on rotation around
(A) N-Cα bond
(B) Cα –C’ bond
(C) C’-N bond
(D) N-H bond
110. A ribonuclease stock solution at pH 3.0 in 10
mM glycine-HCl buffer is diluted 20 fold with
the buffer and resulting absorbance of solution is
taken in a quartz cuvette of path length 1 cm was
0.38 at its wavelength maximum. If the
extinction coefficient of the protein is 0.74
ml/mg.cm, the concentration of the stock protein
solution would be
(A) 5 mg/ml
(B) 10 mg/ml
(C) 20 mg/ml
(D) 50 mg/ml
111. Which of the following techniques cannot be
used to determine the molecular weight of a
protein?
(A) UV absorption
(B) Viscocity
(C) Light scattering
(D) Sedimentation equilibrium
112. β-lactoglobulin which is a monomer at neutral pH
is known to tetramerise at acidic pH of 2. Which
one of the following techniques could be
effectively employed to demonstrate the
formation of a tetramer ?
(A) Native gel electrophoresis
(B) Anion exchange chromatography
(C) SDS-polyacrylamide gel electrophoresis
(D) Reverse phase chromatography
113. If two heterozygous individuals suffering from
an autosomal dominant disorder marry, what is
the occurrence risk for this disorder in their
offspring ?
(A) 100%
(B) 75%
(C) 50%
(D) 25%
114. A man who is affected with hemophilia A
marries a woman who is a carrier of this
disorder. What proportion among the following
of this couple’s daughters will be affected and
what proportion of the daughters will be carriers ?
(A) 0.75; 0.25
(B) 0.25; 0.75
(C) 0 ; 1
(D) 0.5 ; 0.5
115. Which one of the following is an incorrect
association?
(A) Lysosome : synthesizes molecules for
extracellular protein degradation
(B) Mitochondria : cellular respiration
(C) Endoplasmic reticulum: synthesizes proteins
and sends them into Golgi- apparatus
(D) Polysomes : make large quantities of a
particular protein
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116. Which of the following statements about
heritability (H2) is true?
(A) It is a measure of level of gene linkage
(B) It is a measure of inbreeding
(C) It is a measure of heterozygotes in a
population
(D) It is a measure of the proportion of
variation which is contributed by genetic
factors.
117. A threshold trait is one which is
(A) expressed on a continuous scale
(B) present in a few discrete classes but is
influenced by environmental factors
(C) caused by only a single gene, with no
environmental influence
(D) associated with superior survival of the
heterozygote
118. Which of the following describes a type of
polymorphism that occurs within the gene that
causes Huntington’s disease ?
(A) short tandem repeat polymorphism
(B) balanced polymorphism
(C) restriction fragment length polymorphism
(D) frameshift mutation
119. 5-Bromouracil induces mutations because it
(A) replaces a T and binds to G rather than A
(B) replaces a G and binds to A rather than C
(C) changes the binding affinity of G
(D) changes the binding affinity of T
120. A homeotic mutation is one which
(A) is present only in one form in an individual
(B) results in developmental block of any
tissue-specific gene expression
(C)substitutes one body part for another during
development
(D) results from transposon mediated
mutagenesis
121. Cystic fibrosis is a recessive condition that
affects about 1 in 2,500 babies in the Caucasian
population. The frequency of heterozygotes or
carriers of cystic fibrosis is
(A) 1 in 12500
(B) 1 in 25
(C) 1 in 625
(D) 1 in 125
122. Which of the following would cause deviation
from the Hardy-Weinberg equilibrium ?
(A) small population size
(B) random mating
(C) lack of selection pressure
(D) no mutation
123. A woman who is a heterozygous carrier of an Xlinked
recessive disease gene mates with a
phenotypically normal male. The disease gene
has a penetrance of 80%. On an average what
proportion among the following of this couple’s
sons will be affected with the disorder ?
(A) 0.8
(B) 0.4
(C) 0.2
(D) 0.5
124. In a certain tribal population of India, the
prevalence of sickle cell disease, an autosomal
recessive condition is 1/100. Based on this value,
what proportion of the population would be
heterozygous carriers of the sickle cell disease
gene in that tribal population ?
(A) 18%
(B) 10%
(C) 75%
(D) 25%
125. Cell division cycle is divided into 4 phases G1,
S, G2 and M. Standard eukaryotic cell cycles are
of 12 h or longer duration. Early embryonic cell
cycles are extremely rapid having time duration
of less than an hour. Which of the following
phases are drastically reduced in embryonic cell
cycles?
(A) G1 & G2
(B) G1 & S
(C) M & S
(D) G2 & M
126. Ballast water is a serious issue due to possibility
of
(A) introduction of polluted water from one site
to another site
(B) introduction of marine alien invasive species
(C) release of water from the ship leading to
severe upwelling, causing disturbances in
ocean currents
(D) several ships anchored near the harbors
causing transient localized depletion of
water due to uptake of seawater after
offloading cargo
127. White spot syndrome virus (WSSV) is a major
shrimp viral pathogen. Among the WSSV
structural proteins, VP28 protein located in the
viral envelop plays a major role in invasion of
WSSV into shrimp. What would be the ideal
strategy for protection against the WSSV
infection based on the above information?
11
(A) Adding streptomycin or its analogues that
would interfere with the production of VP28
envelop protein
(B) Creating a transgenic shrimp that would
produce an alkaline protease that in turn
would degrade the tail of WSSV virus
(C) Supplementing shrimp feed with glucan
encapsulating VP28-siRNA
(D) Introducing Lima lima bivalves (filter
feeders) which would selectively eliminate
the WSSV due to affinity of mantle protein
to VP28
128. When numbers of organisms and amounts of
living material in successively higher trophic
levels are compared, the values usually take the
form of a pyramid, with the largest numbers and
greatest biomass in the producer trophic level.
However, in some marine ecosystems, the
consumer trophic levels contain significantly
greater amounts of living material than does the
primary-producer trophic level. Which of the
following is the best explanation for this?
(A) The main primary producers in marine
ecosystems are microscopic algae with
extremely high rates of population turnover
(B) Most consumers in marine ecosystems are
filter feeders that must maintain large
Basket-like structures for extracting food
from the water
(C) The increased availability of solar radiation
in marine ecosystems means that fewer
primary producers are required to support
marine food chains
(D) The largest consumers in marine ecosystems,
the baleen whales, are essentially filter
feeders
129. Microbial rhodopsins are a widespread family of
photoactive proteins. Archaebacteria belonging
to Halobacteria predominantly contain
(A) bacteriorhodopsin only
(B) halorhodopsin only
(C) sensory rhodopsin only
(D) bacteriorhodopsin, halorhodopsin and
sensory rhodopsin
130. The Marshall hydrothermal recovery system is a
patented proposal
(A) to exploit hydrothermal vents for their
energy and minerals using dynamically
positioned ship or platform position over
vent and harnessing the mineral using
conventional pipeline
(B) to repopulate the dead hydrothermal vents
with marine organisms that would scavenge
the decaying matter
(C) to recover and exploit the shrimps for
mariculture
(D) with a technology to convert white smokers
(low temperature plumes) to black smokers
131. Shellfish poisoning resulting in permanent
short-term memory loss, brain damage and death
in severe cases in humans is due to intake of
(A) the marine biotoxin called domoic acid
produced naturally by marine diatoms and
which bioaccumulates in shellfish
(B) the marine toxin Okadaic acid that is
produced by marine sponge and is
accumulated in bivalves
(C) shellfish contaminated by brevetoxins or
brevetoxin analogs that are produced by
dinoflagellates
(D) Saxitoxin produced by harmful algal blooms
and accumulated in some shellfish
132. The most resistant population of mangroves
which normally grow in high salinities inhabit
the
(A) Ceriops zone
(B) Bruguiera zone
(C) Rhizophora zone
(D) woodland
133. Chitosan, a deacetylated form of chitin (a
natural carbohydrate polymer in crab, lobster and
shrimps) is used in medicine
(A) as a fungicide
(B) in plastic surgery to arrest bleeding
(C) to remove heavy metals from the skin
(D) as an antiseptic cream
134. A Slocum Glider, also referred to as an
Autonomous Underwater Vehicle (AUV) is used
at varying depths in marine waters
(A) to monitor microbial films
(B) to detect harmful algal blooms
(C) for marine biodiversity analysis
(D) to study the primary productivity
135. A marine bryozoan, normally causing a problem
as a biofouler on boats, harbors a bacterium that
has shown promise in cancer treatment as well as
a memory enhancer for patients with
Alzheimer’s. Choose the correct answer from the
following.
(A) Bugula neritina
(B) Bugula dentate
(C) Cephalosporium acremonium
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(D) Ectoprocta sp.
136. Which of the following regions typically has the
highest primary productivity per unit surface
area of the ocean?
(A) zones of upwelling
(B) coastal water
(C) the centres of ocean gyres
(D) tropical waters
137. Biofilms interrupt the flow of ions and water to
and from the substrate surface by acting as a
diffusion barrier. The reduction of localised
oxygen can accelerate the corrosion of a metallic
substrate and is called microbially induced
corrosion (MIC). An example of MIC is
(A) sulphides from SRB which cause the pitting
of steel surfaces
(B) remains of old barnacle exoskeletons
(C) electrostatic interactions and Van der Waal's
forces
(D) crosslinks using cysteine residues
138. Antifouling systems that do not use heavy
metals are called foul release coatings (FRC).The
most effective FRC presently used in the marine
environment is
(A) tributyltin (TBT)
(B) biocides such as lead, arsenic, mercury
(C) fluoropolymer and silicone based polymer
coatings
(D) spray coatings
139. Porites from Scleractinian (stony) corals have
been found to be biocompatible and hence used
in human systems
(A) as structural requirements for bone
substitute in cranial surgery
(B) as a muscle substitute in heart surgery
(C) in the manufacture of biodegradable sutures
(D) in corneal transplants
140. The first marine derived anti-cancer drug,
“Cytosar- U” used for the treatment of leukemia
and lymphoma was isolated from
(A) Southeast Asian corals
(B) a Caribbean sea sponge
(C) Indian sea hare
(D) Australian waters
141. In a pairwise alignment, an optimal alignment is
one that
(A) either minimizes the implied number of
evolutionary changes or minimizes a
particular scoring function
(B) either maximizes the implied number of
evolutionary changes or minimizes a
particular scoring function
(C) either minimizes the implied number of
evolutionary changes or maximizes a
particular scoring function
(D) either maximizes the implied number of
evolutionary changes or maximizes a
particular scoring function
142. FASTA was the first database search program
that
(A) is much faster than Smith-Waterman
(B) is much slower than Smith-Waterman
(C) sensitivity and speed of the database search
with FASTA are directly related
(D) calculates similarity index
143. RMSD between the coordinates of the amino
acid gly and its mirror image after superposition
will be
(A) 0.0 Angstrom
(B) More than 1.5 Angstrom
(C) More than 3.5 Angstrom
(D) More than 6.0 Angstrom
144. The radius of the following helix types in
proteins follows the order
(A) pi helix>alpha helix>310 helix
(B) 310 helix>alpha helix>pi helix
(C) 310 helix>pi helix>alpha helix
(D) alpha helix> 310 helix> pi helix
145. Needleman-Wunsch algorithm, is an example of
dynamic programming, which does not involve
(A) scoring a matrix
(B) setting up a matrix
(C) local alignment
(D) identifying the optimal alignment
146. RCSB is
(A) An Information Portal to Protein database
(B) An Information Portal to DNA database
(C) An Information Portal to Biological
Macromolecular Structures
(D) An Information Portal to microarray
147. To identify the presence of repeats in a protein,
the simplest and fastest way is to perform a
(A) self dot-plot
(B) dot-plot with another protein with same
repeats
(C) dot-plot with another protein with any repeat
(D) BLAST search
13
148. The double-helical Watson-Crick structure of
DNA was first obtained form
(A) Fiber diffraction only
(B) Fiber diffraction and molecular modeling
(C) X-ray diffraction from single crystals
(D) Diffraction from single crystals and
molecular modeling
149. Molecular dynamics differs from molecular
mechanics by taking into account
(A) the velocities of the constituent particles
(B) the effect of the solvent medium
(C) the non-bonded interactions
(D) the periodic boundary condition
150. Which of the following amino acid sequences
belong to collagen fibers?
(A) -Gly-Ala-Gly-Thr-Gly-Ala-Gly-Thr-Gly-
Ala-Gly-Thr-
(B) -Gly-Ala-Glu-Ser-Leu-Gly-Ala-Glu-Ser-
Leu-Gly-Ala-
(C) -Gly-Ala-Pro-Gly-Pro-Pro-Gly-Thr-Pro-
Gly-Ala-Pro-
(D) -Gly-Ala-Glu-Ser-Leu-Gly-Asn-Gly-Ala-
Gly-Ala-Glu-Ser-Leu-Gly-Asn-
151. The secondary structural elements in a protein
domain are in the sequence beta-beta-beta-alphabeta-
beta-beta-alpha-alpha. It will be classified
as
(A) alpha+beta protein
(B) alpha/beta protein
(C) mostly beta protein
(D) membrane protein
152. The major and minor grooves of B-form DNA
correspond to the following feature of A-form
RNA
(A) minor and major grooves
(B) major and minor grooves
(C) deep and shallow grooves
(D) wide and shallow grooves
153. Which is the amino acid among the following
that can occupy positions in the Ramachandran
map that are disallowed for other 19 amino acids,
but allowed for D-amino acids?
(A) Ala
(B) Gly
(C) Pro
(D) Cys
154. If side chains of amino acids interact with each
other, which of the following would be termed as
a salt bridge?
(A) Tyr- Phe
(B) Cys- Cys
(C) Lys- Glu
(D) Ala- Val
155. Fifth order Markov model assumes that
probability of occurrence of an element depends
on
(A) Previous five positions
(B) Previous four positions
(C) Following four positions
(D) Following five positions
156. In a batch cultivation, during logarithmic growth
phase, specific growth rate of culture virtually
remains constant primarily because
(A) medium composition is fixed
(B) substrate concentration is decreasing
gradually
(C) The Ks value is much smaller than S0
(initial substrate concentration)
(D) specific nutrient uptake rate is constant
157. The continuous High Temperature Short Time
sterilization processes help in maintaining media
quality primarily because of
(A) short holding time and continuous nature of
the process
(B) high temperature of operation of the process
combined with flash cooling
(C) higher value of ΔE for thermal inactivation
of spores compared to the ΔE for media
deactivation
(D) High pressure obtained in these processes
killing the spores more effectively
158. Identify the parameter among the following used
for scale up of a shear sensitive cells in a
fermentation process
(A) KLa
(B) Power per unit volume
(C) Impeller tip speed
(D) Air flow rate in vvm
159. Sterilization of air by absolute filtration
mechanism is primarily based on
(A) Impaction
(B) Electrostatic interaction
(C) Diffusion
(D) Size exclusion
160. In turbulent regime, power number is
…………………the Impeller Reynolds number
(A) directly proportional to
(B) directly proportional to the square of
(C) independent of
(D) non linearly related to
14
161. When the carbon source used is changed from
glucose to methanol in a bioprocess, you would
definitely expect higher
(A) biomass yield
(B) specific heat production
(C) specific growth rate
(D) product yield
162. Triglycerides are accumulated by several algal
species, if
(A) nitrogen source is limited
(B) carbon source is limited
(C) oxygen is limited
(D) temperature is lowered below the optimal
range
163. Acetobacter aceti produced 7.5 g/l CH3COOH
from a medium containing initial 10 g/l C2H5OH
when the residual C2H5OH concentration is 2 g/l.
What will be the overall yield of CH3COOH
from C2H5OH compared to the theoretical yield?
(A) 70% of the theoretical yield
(B) 72% of the theoretical yield
(C) 84% of the theoretical yield
(D) 94% of the theoretical yield
164. Exponential phase is between acceleration and
deceleration phase of growth. The value of μ in
both the phases except the exponential phase is
(A) μ = μmax
(B) μ > μmax
(C) μ < μmax
(D) μ ≥ μmax
165. Cooling water enters at 20º C in a counter
current heat exchanger and leaves at 40º C while
hot water enters from the other side at 70º C and
leaves at 50º C The LMTD for this process will
be…………………(for calculating temperature
difference in the equation Q = UA T).
(A) indeterminate
(B) 20 º C
(C) 30 º C
(D) 50 º C
166. Out of various derivatives of rifamycin groups
of antibiotics, which one is biologically inactive
(A) Rifamycin SV
(B) Rifamide
(C) Rifamycin B
(D) Rifamycins
167. In a fed batch process with concentrated
constant feed and high maintenance coefficient
of the cells, growth of the cells will
(A) show linear increase
(B) taper off asymptotically
(C) not increase
(D) increase exponentially
168. Which of the following organisms typically get
their carbon for biosynthesis from carbon
dioxide
(A) Glucose fermenting bacteria
(B) Anaerobic glucose respiring bacteria
(C) Aerobic glucose respiring bacteria
(D) Ammonia oxidizing bacteria
169. In centrifugation, if the angular speed is
constant, the time required for pelleting cells in
a rotor of larger size
(A) will be longer
(B) will be shorter
(C) will remain unchanged
(D) will not depend on angular speed or size
170. Dynamic kinetic resolution yields a maximum
of
(A) 50% conversion
(B) 100% conversion
(C) 75% conversion
(D) 25% conversion
171. Which of the following groups of enzymes is not
used for the kinetic resolution of racemates?
(A) Lipases
(B) Nitrases
(C) Oxidoreductases
(D) Epoxide hydrolases
172. In drug development, “Racemic switch” is
introduced for the synthesis of
(A) Meso compounds
(B) Racemic mixture
(C) Eutomer
(D) Distomer
173. Which of the following pairs of amino acids is
responsible for feed-back inhibition of lysine
biosynthesis in Corynebacteria?
(A) Lysine and methionine
(B) Lysine and leucine
(C) Lysine and threonine
(D) Lysine and isoleucine
174. Which of the metal ions series is crucial in citric
acid biosynthesis ?
(A) Fe, Zn and Mn
(B) Fe, Cu and Zn
(C) Cu, Co and Mn
(D) Zn, Cu and Fe
15
175. In breakthrough curve for batch adsorption,
steeper the curve_________ is the adsorbent
(A) more specific
(B) less specific
(C) more porous
(D) less porous
176. A 1.5 ml of a bacterial culture consisting of
108/ml is used to inoculate 100 ml of medium
where the cells reach a density of 5x107 cells/ml.
How many generations did the cells go through
approximately?
(A) 1
(B) 5
(C) 10
(D) 15
177. Which of the following traits is most critical for
a microorganism used in an industrial
bioprocesses producing ethanol?
(A) High specific productivity
(B) High product yield
(C) High substrate consumption rate
(D) High specific growth rate
178. The degree for reduction of biomass CH1.8 N0.2
O0.5 growing on glucose and ammonia is
(A) 6.2
(B) 5.2
(C) 4.2
(D) 3.2
179. The best example of product formation kinetics
following Leudeking-Piret model is
(A) Alcohol production
(B) Antibiotics production
(C) Lactic acid production
(D) Recombinant protein production
180. The addition of silicone antifoam to a production
fermenter has the disadvantage of
(A) reducing KLa
(B) producing undesirable byproducts
(C) increasing gas hold up
(D) makes PID control of DO difficult
181. In a two-step fermentation process to produce
vinegar, starting from molasses, the metabolic
product produced as an intermediate is
(A) acetaldehyde
(B) ethyl alcohol
(C) citric acid
(D) pyruvate
182. For Monod equation with substrate inhibition
given by μ= μm S/(KS+S+S2/KI), there are two
theoretically possible steady state solutions in a
CSTR. Out of these
(A) both are stable steady states
(B) the lower substrate concentration represents
the stable steady state
(C) the higher substrate concentration represents
the stable steady state
(D) both are unstable
183. The substrate concentration used in Monod
kinetics is the
(A) carbon source
(B) limiting nutrient
(C) nutrient in excess
(D) nitrogen source
184. For high cell density cultivation of recombinant
E. coli using fed batch techniques to maintain a
constant specific growth rate, the feed of
concentrated substrate is
(A) kept at a constant value
(B) increased linearly
(C) increased exponentially
(D) controlled by feed back based on
temperature
185. In depth filtration, the material widely used
is…………… fiber
(A) polypropylene
(B) polytetrafluoroethylene (PTFE)
(C) glass wool
(D) absorbent cotton
186. In a fermentor without cooling coils and a single
agitator if the height to diameter ratio is
decreased,
(A) area of heat transfer is decreased
(B) residence time of the bubble is increased
(C) agitator power consumption increased
(D) Both (a) and (c)
187. The product concentration in an enzyme
catalyzed reaction increases linearly with time.
From this we can conclude that the
(A) enzyme is deactivating
(B) reaction is product inhibited
(C) Km values are very high
(D) reaction is zero order
188. Generic drugs are introduced in the market as
generic versions because they are
(A) Low cost
(B) easy to manufacture
(C) less toxic
(D) more active
16
189. In an aerated bioreactor, the major increase in the
oxygen transfer rate, when the stirrer speed is
increased is because
(A) increasing shear decreases the bubble size
(B) size of the boundary layer surrounding a
bubble is decreased
(C) gas side mass transfer coefficient is
increased
(D) cells come in close contact with the bubble
190. Which of the following penicillins in current use
represents an unmodified naturally occurring
product?
(A) Ampicillin
(B) Penicillin G
(C) Methicillin
(D) Amoxicillin
191. A type of apomixis in which embryo sac
develops from vegetative cells of the ovule is
called
(A) Apospory
(B) Apogamy
(C) Diplospory
(D) Polyembryony
192. Banana bunchy top disease is transmitted by
(A) Ferrisia virgata
(B) Aphis gossypii
(C) Pentalonia nigronervosa
(D) Thrips tabaci
193. The first product of photosynthesis in C3 plants
is
(A) Glycerate 3 phosphate
(B) Malate
(C) Glycerate
(D) Phospho-enol pyruvate
194. Which one of the following requires back
crossing?
(A) generation of Recombinant Inbred Lines
(RILs)
(B) generation of Doubled Haploids (DH)
(C) generation of F2s
(D) generation of Near isogenic Lines (NILs)
195. nptII gene imparts resistance to
(A) Ampicillin
(B) Hygromycin
(C) Kanamycin
(D) Chloramphenicol
196. Agrobacterium mediated transformation of
monocots requires the use of ______ for the
induction of vir genes.
(A) Agarose
(B) Acetophenone
(C) Acetosyringone
(D) Cefotaxime
197. Which of the following techniques is used to
obtain hybrids between two species with prefertilization
barrier?
(A) Embryo rescue
(B) Protoplast fusion
(C) Ovary culture
(D) Embryo implantation
198. Which of the following is used most commonly
in the plant tissue culture medium to induce
multiple shoots ?
(A) Benzylaminopurine
(B) Naphthalene Acetic acid
(C) 2,4-Dichlorophenoxy acetic acid
(D) Indole butyric acid
199. The chemical nature of GA3 is
(A) Phenolic
(B) Terpene
(C) Purine
(D) Indole
200. Rice grains are deficient in
(A) Lysine
(B) Glycine
(C) Isoleucine
(D) Alanine
201. Lysimeter is used in the measurement of
(A) Light
(B) Transpiration
(C) Lysine content
(D) Water potential
202. Aerenchyma formation is related to which of the
following hormones?
(A) ABA
(B) Ethylene
(C) Cytokinin
(D) Auxin
203. Barnase has----------activity
(A) Dnase
(B) RNase
(C) Protease
(D) Restriction
204. _______is used as a bacteriostat in the
Agrobacterium mediated plant transformation
experiments
(A) Kanamycin
(B) Hygromycin
17
(C) Cefotaxime
(D) Ampicillin
205. Variation in clonally reproducing crop arises
from
(A) Genetic recombination
(B) Chromosomal segregation
(C) Alternative splicing
(D) Mutation
206. In the incomplete dominance of a monohybrid,
the number of phenotypes in the F2 will be
(A) 1
(B) 2
(C) 3
(D) 4
207. Seeds germinating in dark beneath the surface of
the soil undergo
(A) Skotomorphogenesis
(B) Photomorphogenesis
(C) Embryogenesis
(D) Dessication
208. The substrate for photorespiration is
(A) Glycine
(B) Phospho Glycolic Acid
(C) Glycolic acid
(D) Phospho-glyceric acid
209. Mating between individuals which are closely
related by ancestry is called
(A) Genetic assortative mating
(B) Genetic disassortative mating
(C) Random mating
(D) Poly cross
210. Engineering plants using chitinase gene leads to
development of
(A) Viral resistance
(B) Fungal resistance
(C) Bacterial resistance
(D) Cold tolerance
211. The first GM potato developed at CPRI, India
for increasing protein content in tubers consists
of genes from
(A) Chick pea
(B) Pigeon pea
(C) Cabbage
(D) Amaranthus
212. Hybridization between species followed by
polyploidy is known as
(A) Autopolyploid
(B) Allopolyploid
(C) Aneuploid
(D) Species differentiation
213. Source of dwarfing genes in wheat is
(A) Ganga 101
(B) Norin 10
(C) Dee-geo-woo-gen
(D) Sonalika
214. Form of IPR that helped India win Basmati case
is
(A) Novelty
(B) Trade mark
(C) Geographical indication
(D) Industrial design
215. The probable Geographic Origin of the following
crops is called: Wheat and barley, flax, lentils,
chickpea, figs, dates, grapes, olives, lettuce,
onions, cabbage, carrots, cucumbers, melons and
fruits and nuts
(A) South America
(B) Mesoamerica and North America
(C) The Fertile Crescent
(D) South-east Asia
216. Administration of the DPT vaccine (diphtheria
toxoid, pertussis products, and tetanus toxoid)
would stimulate which of the following types of
immunity?
(A) Artificial active
(B) Artificial passive
(C) Natural active
(D) Natural passive
217. Which of the following events occurs first in the
differentiation sequence of human B cells in the
bone marrow?
(A) Immunoglobulin light chain gene
rearrangement
(B) Immunoglobulin heavy chain gene
rearrangement
(C) Expression of surface IgD and IgM
(D) Expression of surface IgM
218. Loss of which of the following classes of
molecules on the surface of a tumor cell target
would result in loss of susceptibility to killing by
host immune cells?
(A) CD3
(B) CD4
(C) MHC class I
(D) MHC class II
18
219. Which of the following cell types will be
involved in an immediate hypersensitivity
reaction due to an insect sting?
(A) Neutrophils
(B) Eosinophils
(C) Basophils
(D) Mast cells
220. Which one of the following is NOT a function
of glia?
(A) providing support to the neural tissue
(B) conduction and processing of electrical
signal
(C) myelination of neurons
(D) help in neuronal growth
221. Vagus nerve is a
(A) sensory nerve
(B) sensory-motor mixed nerve
(C) motor nerve
(D) lumbar nerve
222. Pain sensation is a subjective and conscious
feeling. However, although the autonomic
organs viz. brain, heart etc. do not get
represented in the cerebral cortex, one feels
pain in those parts as well. This is because
(A) these parts receive less blood supply
(B) of increased pH in those parts
(C) of the phenomenon known as referred pain
(D) these organs are not superficially located
223. In a gastrocnemius-sciatic (nerve-muscle)
preparation electrical stimulation of the nerve
caused twitching of the muscle. Direct
stimulation of the muscle also caused twitching.
When curare (a cholinergic antagonist) was
applied in the bath where the preparation was
maintained and the nerve was stimulated, the
muscle twitch was not seen. However, under
these conditions, if the muscle was stimulated
directly, it twitched. These observations suggest
that
(A) stimulation of the nerve was directly
communicated to the muscle for
contraction
(B) stimulation of the nerve was communicated
to the muscle through the mediation of
acetylcholine
(C) after application of curare the stimulation
of the nerve did not evoke muscle twitch
because the nerve was fatigued
(D) after application of curare the stimulation
of the nerve did not evoke muscle twitch
because muscle was fatigued
224. Nerve bundles in vertebrates are likely to
contain
(A) many myelinated axons of different
diameters as well as a large number of
unmyelinated fibres
(B) many unmyelinated fibres as well as a large
number of myelinated axons of same
diameters
(C) only myelinated axons of same diameter
(D) only unmyelinated axons of different
diameter
225. In Parkinson’s disease, there is a predominant
loss of dopaminergic neurons primarily in
(A) substantia nigra
(B) cerebellar cortex
(C) cerebral cortex
(D) locus coeruleus
226. A tissue was responding when treated with a
chemical for a brief period. However, when the
treatment was continued for a longer time, the
response stopped. After washing and leaving for
some time, the tissue started responding to the
same chemical at the same dose. The reason for
the reduced response is likely to be due to
(A) increased apoptosis of the treated cells
(B) increased necrosis of the treated cells
(C) fixation of the treated cells
(D) desensitization/down-regulation of the
receptors on the treated cells
227. Salmons return to their specific home stream to
spawn. This is an example of
(A) pheromone action
(B) reflex action
(C) imprinting
(D) circadian rhythm
228. Mark the correct statement for a normal living
excitable cell at rest. The ionic concentrations
across the cell membrane are such that
(A) they are at equi-potential
(B) the intracellular potential is positive relative
to that of the extracellular
(C) the intracellular potential is negative relative
to that of the extracellular
(D) the intracellular potential is positive relative
to that of the intracellular
potential of another cell
229. If the sequence of the DNA sense strand is 5’
GATCCTATGCTAC 3’, then the transcribed
mRNA sequence will be
(A) 5’ GAUCCUAUGCUAC 3’
19
(B) 5’ CUAGGUAUCGAUC 3’
(C) 5’ CAUCGUAUACCUAG 3’
(D) 5’ GUAGCAUAGGAUC 3’
230. Which of the following cells is important for
generation of antigen-specific effector T-cells?
(A) Macrophages
(B) B-cells
(C) Dendritic cells
(D) NK cells
231. Which one of the following cells does not
require processed antigen to lyse tumour cells?
(A) CD8+ T-cells
(B) CD4+ T-cells
(C) NK Cells
(D) Macrophage
232. Cyclosporin A is administered to patients
undergoing transplantation because it
(A) downregulates TCR expression
(B) downregulates IL-2 production
(C) downregulates antigen presentation
(D) prevents recruitment of CD8+ T-cells in the
grafted tissue
233. In flow cytometry ‘compensation’ is used to
remove
(A) cell debris
(B) apoptotic cells
(C) overlap of fluorescence spectra
(D) signal noise
234. The binding of IL-2 to its receptor in an
activated T-cell is mediated by
(A) α and γ chains
(B) γ and β chains
(C) α and β chains
(D) γ chain alone
235. The D gene segment of the TCR and BCR
encodes for a part of the
(A) CDR3 region of both TCR & BCR
(B) CDR2 region of both TCR & BCR
(C) CDR1 region of only the BCR
(D) CDR3 region of only the TCR
236. Super antigens bind to
(A) C β domain of TCR and non-polymorphic
region of MHC II
(B) V α domain of TCR & polymorphic region
of MHC II
(C) V β domain of TCR and non-polymorphic
region of MHC II
(D) V β domain of TCR & non-polymorphic
region of MHC I
237. ELISPOT assay is used for measuring
(A) cytokine concentration in serum
(B) antibody titre in serum
(C) frequency of B cell responses
(D) frequency of T cell responses
238. Latency is a feature of which one of the
following viruses?
(A) Herpes Simplex virus
(B) Corona virus
(C) Polio virus
(D) Rabies virus
239. Which one of the following codons is used for
selenocysteine during protein biosynthesis?
(A) UGA
(B) UAG
(C) UGC
(D) UCG
240. Which of the following mechanisms is useful for
removal of autoreactive T-cells by the immune
system?
(A) clonal selection
(B) clonal deletion
(C) phagocytosis
(D) autophagy
241. In bovines which one of the following is a milk
borne infection?
(A) Ephemeral fever
(B) Milk fever
(C) Undulant fever
(D) Botulism
242. Which one of the following diseases in animals
is eradicated from India?
(A) PPR
(B) RP
(C) IBR
(D) IBD
243. Which one of the following diseases is
contracted by human beings mainly through
agricultural occupation?
(A) Leptospirosis
(B) Hydatid disease
(C) Black quarter
20
(D) Malta fever
244. COFAL test is used for the diagnosis of
(A) equine infectious anemia
(B) human immunodeficiency virus
(C) avian leukosis
(D) bovine leukosis
245. Blue tongue virus
(A) agglutinates guinea pig RBCs
(B) agglutinates chicken RBCs
(C) agglutinates mouse RBCs
(D) do not produce hemagglutination
246. Buparvoquone is the drug of choice against
(A) Theileriosis
(B) Babesiosis
(C) Giardiasis
(D) Coccidiosis
247. Which one of the following is not the
characteristic of Aflatoxicosis in chick?
(A) immunosuppresion
(B) wing paralysis
(C) enlargement of liver
(D) loss of condition
248. Vomiting, grey foul smelling diarrhea and
gastroenteritis in young dogs are characteristics
of
(A) Infectious canine hepatitis
(B) Canine parvovirus
(C) Canine distemper virus
(D) Canine corona virus
249. Most commonly affected species with
papillomavirus is
(A) Cattle
(B) Equine
(C) Dog
(D) Human
250. The animal that excretes most of the virus in
foot and mouth disease by aerosols even before
the appearance of clinical signs is
(A) cattle
(B) pig
(C) sheep and goat
(D) buffalo
-----------------------------------------------------------------------------------------
NIN - jobs
NATIONAL INSTITUTE OF NUTRITION
(Indian Council of Medical Research)
TARNAKA, JAMAI-OSMANIA, HYDERABAD-500 007
NIN/PERS/SCH/2012-13/ Dated: 06-03-2013
WALK-IN-INTERVIEW
Eligible candidates are invited to attend a WALK-IN-INTERVIEW on the following dates at 9.30 A.M. sharp for the following posts on the ad hoc research project entitled “Effect of probiotic supplementation on weight reduction and impact on micronutrient and immune status in obese subjects” funded by DBT. The essential qualification, experience, consolidated Pay etc. are as under:
Sl.No.1: Research Assistant 1 No. (ST) Date of Interview: 19-03-2013
Essential Qualifications
B.Sc. in Microbiology/ Bio-Technology from a recognized University with Two years research experience in the relevant field OR B.Sc. in Microbiology/ Bio-Technology from a recognized University with DMLT Certificate.
Desirable: M.Sc. Microbiology/M.Sc. gene technology / M.Sc. Biochemistry/ M.Tech. Biotechnology
Age: 30 years; relaxation of age is admissible for SC/ST/OBC/PH as per the GOI Rules.
Consolidated Salary : Rs.8,000/- p.m. (fixed) without any allowances.
Tenure: Initially for 1 year, extendable depending upon the performance and funds position.
Sl.No.2. Technician 1 No. (UR) Date of Interview: 19-03-2013
Essential Qualification: B.Sc. (B.Z.C.) from a recognized University/Institute. OR
Intermediate with diploma in Medical Laboratory Technology OR
High School with 5 years Lab Experience.
Desirable : Experience in Handling of Microbiology/Immunological Techniques.
Age : 28 years. Relaxation in case of SC/ ST/ OBC/ PH candidates as per G.O.I. Rules.Consolidated Salary : Rs.8,000/-p.m. (Fixed) without any allowances.
Tenure : Initially for 1 year, extendable depending upon the performance and funds position.
Initially the appointment will be given for a period of one year and extendable based on the performance and subject to extension of the Project by the funding agency. The candidates should bring all original certificates of educational qualification (from SSC onwards), experience and caste along with a passport-size photograph and one set of Photo copies of all certificates duly attested while attending the Walk-in-Interview. The persons belongs to Other Backward Category should bring the latest O.B.C. (Non creamy layer) Certificate issued by the respective concerned Thehsildar/ M.R.O. specifically issued for the purpose of applying for Central Government post, No TA/DA will be paid for attending the Interviews/written test.
GENERAL CONDITIONS: The conditions of employment will be the same as are for the project staff on contract basis. The candidates have no right to claim for any regular employment at this Institute. The Director & Appointing Authority has the right to accept / reject any application without assigning any reason and no correspondence in this matter will be entertained.
Sd/-
I/c Sr. Administrative Officerfor Principal Investigator of the Project
Website: www.ninindia.org
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