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Previous Year Questions

TLS Online TPP Program

QUESTION ID:1

Induction of b-galactosidase activity by IPTG is due to

QUESTION ID:2

Which of the following enzymes doesn’t require a primer?

QUESTION ID:3

Which one of the following antibiotics attaches to 50S ribosome and inhibits its peptidyl-transferase activity?

QUESTION ID:4

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?

QUESTION ID:5

Gluconeogenesis is not capable of making glucose from

QUESTION ID:6

Glycosylation of proteins occurs in the

QUESTION ID:7

The 20 different amino acids found in proteins are normally coded by

QUESTION ID:8

How many microliters of 0.1 M solution of sodium chloride will make 10 ml of 5 mM sodium chloride?

QUESTION ID:9

Which of the following is NOT found inside the eukaryotic nucleus?

QUESTION ID:10

Haemolytic disease of the newborn due to Rhesus incompatibility depends upon the

QUESTION ID:11

Hemoglobin shows sigmoidal curve for oxygen saturation. What is the shape of curve for myoglobin oxygen-binding ?

QUESTION ID:12

For transcription to occur in the lactose operon, an inducer must be present so that

QUESTION ID:13

Which of the following is not a feature of mutagenic action of 5-Bromo-deoxyuridine? 

QUESTION ID:14

The action potential results from

QUESTION ID:15

A recombinant vaccine is available for which one of the following cancers?

QUESTION ID:16

A patch–clamp device is used to

QUESTION ID:17

Which type of neurons among the following are predominantly lost in Alzheimer’s disease?

QUESTION ID:18

Circadian rhythm is regulated by the

QUESTION ID:19

Which one of the following is the natural host for pseudo- rabies virus?

QUESTION ID:20

Which one of the following is the causative agent of fowl cholera?

QUESTION ID:21

The wavelengths of light that penetrate the least into the ocean are

QUESTION ID:22

Zooplankton that spend only a portion of their lives as plankton are called

QUESTION ID:23

Most of the sand and mud dwelling benthic organisms are

QUESTION ID:24

The oceanic depth that represents equilibrium between oxygen and carbon dioxide production is termed the _________ depth.

QUESTION ID:25

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?

QUESTION ID:26

Ca- Ca distance plot might be useful in

QUESTION ID:27

A coin is tossed three times, what is the probability that exactly one heads turns up

QUESTION ID:28

WebIn is a sequence submission tool provided by

QUESTION ID:29

National Center for Biotechnology Information (NCBI) was established on November 4, 1988 as a division of the

QUESTION ID:30

The parts of proteins having the highest flexibility are

QUESTION ID:31

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

QUESTION ID:32

Identify the method from the following that is not used for KLa determination.

QUESTION ID:33

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

QUESTION ID:34

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

QUESTION ID:35

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

QUESTION ID:36

Liquid is being pumped using a centrifugal pump, if the outlet valve is suddenly closed then,

QUESTION ID:37

When terminal velocity is reached, the net downward force due to gravity, on the object is

QUESTION ID:38

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

QUESTION ID:39

Which one of the following promoters is not derived from Agrobacterium?

QUESTION ID:40

Which of the following is incorrect with respect to modification of Mendelian dihybrid ratio?

QUESTION ID:41

An example of a co-dominant marker is

QUESTION ID:42

A mapping method for identifying markers linked to trait of our interest in a natural population is

QUESTION ID:43

The number of phenotypes in the F2 of the dihybrid will be

QUESTION ID:44

Suppressor tRNA mutations are those in which

QUESTION ID:45

Which of the following media is best suited for the selective growth of E. coli with genotype: Str+ his- leu- lys- ?

QUESTION ID:46

Which of the following amino acids is coded by maximum number of codons ?

QUESTION ID:47

In cell cycle, paternal and maternal chromosomes exhibit a “bouquet stage” during

QUESTION ID:48

Which of the following cytokines is secreted by both Th1 and Th2 type of cells ?

QUESTION ID:49

Processing of transfer RNA involves

QUESTION ID:50

Somatic mutation of Immunoglobulin gene accounts for

QUESTION ID:51

Which of the following enzymes is NOT used in pyrosequencing?

QUESTION ID:52

Which of the following statements is not true for HFr strains of E. coli ?

QUESTION ID:53

Which of the following organisms contains a 11 bp specific DNA sequence that acts as selfrecognition sequence in natural transformation ?

QUESTION ID:54

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

QUESTION ID:55

Which one of the following viruses is not transmitted by the fecal-oral route ?

QUESTION ID:56

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

QUESTION ID:57

Which of the following repair mechanisms is absent in a cell arrested in cell cycle?

QUESTION ID:58

Intracellular transport in mammalian cells through vesicular fusion is regulated by which among the following GTPases ?

QUESTION ID:59

HSP70 chaperons are not present in which among the following organelles?

QUESTION ID:60

Major gluconeogenesis occurs in

QUESTION ID:61

A change in which of the following genes is responsible for Fragile X syndrome?

QUESTION ID:62

Molecular basis of Chediak-Higashi syndrome is

QUESTION ID:63

Type III hypersensitivity is mediated by

QUESTION ID:64

Junctional diversity affects primarily the amino acid sequence in

QUESTION ID:65

A child stung by a bee experiences respiratory distress within minutes and lapses into unconsciousness. This reaction is probably mediated by

QUESTION ID:66

Neutrophils are attracted to an infected area by

QUESTION ID:67

In the immune response to a hapten-protein conjugate, in order to get anti-hapten antibodies it is essential that

QUESTION ID:68

Chromatin loops are formed by periodic attachment of the following onto the nuclear skeleton

QUESTION ID:69

Telomeric DNA does not contain

QUESTION ID:70

The ATP required for ligation during base excision repair is generated from

QUESTION ID:71

The covalent modification of histones that is not known to play a role in regulation of gene expression is

QUESTION ID:72

Okazaki fragments are

QUESTION ID:73

The changes in the electrical potential of a neuron that constitute the action potential occur in the following order

QUESTION ID:74

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 ?

QUESTION ID:75

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

QUESTION ID:76

Developing T cells that react strongly with selfpeptides bound to self-MHC molecules are

QUESTION ID:77

Which of the following statements is correct?

QUESTION ID:78

What is the force among the following that is primarily responsible for stabilizing the tertiary structure of globular proteins?

QUESTION ID:79

Which of the following sequences describes the passage of an action potential in the neuron?

QUESTION ID:80

In the biological treatment of waste, bacteria such as species of Acinetobacter and Zoogloea are considered to play a key role in floc formation

QUESTION ID:81

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

QUESTION ID:82

Some extremozymes are found to remain active and stable up to 140°C. The decreased flexibility and rigidity of the molecule is due to

QUESTION ID:83

Solid state fermentations (SSF’s) involve solid substrates at low moisture levels or water activities where

QUESTION ID:84

The common type of duplication generates a second copy of the gene

QUESTION ID:85

A silent substitution

QUESTION ID:86

Satellite DNAs are not typically found within which of the following parts of a chromosome?

QUESTION ID:87

What is the sugar–sugar linkage among the following in the 5’ cap on mRNA molecules?

QUESTION ID:88

Introduction of a non-sense mutation in a eukaryotic protein coding gene often leads to

QUESTION ID:89

What effect would ‘N’ mutation have on phage lambda infection?

QUESTION ID:90

The bacterial ftsZ gene is required for

QUESTION ID:91

Two plasmids are of the same compatibility group if they

QUESTION ID:92

Replication defective retroviruses are most commonly generated by

QUESTION ID:93

Alu elements are

QUESTION ID:94

Telomeres consist of simple sequence repeats of

QUESTION ID:95

True activators of transcription are transcription factors that bind to

QUESTION ID:96

Position effect variegation describes

QUESTION ID:97

The U2 snRNA basepairs with

QUESTION ID:98

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 protonated. The net charge on the enzyme at pH 6 would therefore be

QUESTION ID:99

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.

QUESTION ID:100

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

QUESTION ID:101

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?

QUESTION ID:102

In peptides the values of dihedral angle phi is based on rotation around

QUESTION ID:103

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

QUESTION ID:104

Which of the following techniques cannot be used to determine the molecular weight of a protein?

QUESTION ID:105

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 ?

QUESTION ID:106

If two heterozygous individuals suffering from an autosomal dominant disorder marry, what is the occurrence risk for this disorder in their offspring ?

QUESTION ID:107

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 ?

QUESTION ID:108

Which one of the following is an incorrect association?

QUESTION ID:109

Which of the following statements about heritability (H2) is true?

QUESTION ID:110

A threshold trait is one which is

QUESTION ID:111

Which of the following describes a type of polymorphism that occurs within the gene that causes Huntington’s disease ?

QUESTION ID:112

5-Bromouracil induces mutations because it

QUESTION ID:113

A homeotic mutation is one which

QUESTION ID:114

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

QUESTION ID:115

Which of the following would cause deviation from the Hardy-Weinberg equilibrium ?

QUESTION ID:116

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 ?

QUESTION ID:117

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 ?

QUESTION ID:118

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?

QUESTION ID:119

Ballast water is a serious issue due to possibility of

QUESTION ID:120

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?

QUESTION ID:121

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?

QUESTION ID:122

Microbial rhodopsins are a widespread family of photoactive proteins. Archaebacteria belonging to Halobacteria predominantly contain

QUESTION ID:123

The Marshall hydrothermal recovery system is a patented proposal

QUESTION ID:124

Shellfish poisoning resulting in permanent short-term memory loss, brain damage and death in severe cases in humans is due to intake of

QUESTION ID:125

The most resistant population of mangroves which normally grow in high salinities inhabit the

QUESTION ID:126

Chitosan, a deacetylated form of chitin (a natural carbohydrate polymer in crab, lobster and shrimps) is used in medicine

QUESTION ID:127

A Slocum Glider, also referred to as an Autonomous Underwater Vehicle (AUV) is used at varying depths in marine waters

QUESTION ID:128

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.

QUESTION ID:129

Which of the following regions typically has the highest primary productivity per unit surface area of the ocean?

QUESTION ID:130

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

QUESTION ID:131

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

QUESTION ID:132

Porites from Scleractinian. (stony) .corals have been found to be biocompatible and hence used in human systems

QUESTION ID:133

The first marine derived anti-cancer drug, “Cytosar- U” used for the treatment of leukemia and lymphoma was isolated from

QUESTION ID:134

In a pairwise alignment, an optimal alignment is one that

QUESTION ID:135

FASTA was the first database search program that

QUESTION ID:136

RMSD between the coordinates of the amino acid gly and its mirror image after superposition will be

QUESTION ID:137

The radius of the following helix types in proteins follows the order

QUESTION ID:138

Needleman-Wunsch algorithm, is an example of dynamic programming, which does not involve

QUESTION ID:139

RCSB is

QUESTION ID:140

To identify the presence of repeats in a protein, the simplest and fastest way is to perform a

QUESTION ID:141

The double-helical Watson-Crick structure of DNA was first obtained form

QUESTION ID:142

Molecular dynamics differs from molecular mechanics by taking into account

QUESTION ID:143

Which of the following amino acid sequences belong to collagen fibers?

QUESTION ID:144

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

QUESTION ID:145

The major and minor grooves of B-form DNA correspond to the following feature of A-form RNA

QUESTION ID:146

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?

QUESTION ID:147

If side chains of amino acids interact with each other, which of the following would be termed as a salt bridge?

QUESTION ID:148

Fifth order Markov model assumes that probability of occurrence of an element depends on

QUESTION ID:149

In a batch cultivation, during logarithmic growth phase, specific growth rate of culture virtually remains constant primarily because

QUESTION ID:150

The continuous High Temperature Short Time sterilization processes help in maintaining media quality primarily because of

QUESTION ID:151

Identify the parameter among the following used for scale up of a shear sensitive cells in a fermentation process

QUESTION ID:152

Sterilization of air by absolute filtration mechanism is primarily based on

QUESTION ID:153

In turbulent regime, power number is …………………the Impeller Reynolds number

QUESTION ID:154

When the carbon source used is changed from glucose to methanol in a bioprocess, you would definitely expect higher

QUESTION ID:155

Triglycerides are accumulated by several algal species, if

QUESTION ID:156

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?

QUESTION ID:157

Exponential phase is between acceleration and deceleration phase of growth. The value of μ in both the phases except the exponential phase is

QUESTION ID:158

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).

QUESTION ID:159

Out of various derivatives of rifamycin groups of antibiotics, which one is biologically inactive

QUESTION ID:160

In a fed batch process with concentrated constant feed and high maintenance coefficient of the cells, growth of the cells will

QUESTION ID:161

Which of the following organisms typically get their carbon for biosynthesis from carbon dioxide

QUESTION ID:162

In centrifugation, if the angular speed is constant, the time required for pelleting cells in a rotor of larger size

QUESTION ID:163

Dynamic kinetic resolution yields a maximum of

QUESTION ID:164

Which of the following groups of enzymes is not used for the kinetic resolution of racemates?

QUESTION ID:165

In drug development, “Racemic switch” is introduced for the synthesis of

QUESTION ID:166

Which of the following pairs of amino acids is responsible for feed-back inhibition of lysine biosynthesis in Corynebacteria?

QUESTION ID:167

Which of the metal ions series is crucial in citric acid biosynthesis ?

QUESTION ID:168

In breakthrough curve for batch adsorption, steeper the curve_________ is the adsorbent

QUESTION ID:169

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?

QUESTION ID:170

Which of the following traits is most critical for a microorganism used in an industrial bioprocesses producing ethanol?

QUESTION ID:171

The degree for reduction of biomass CH1.8 N0.2O0.5 growing on glucose and ammonia is

QUESTION ID:172

The best example of product formation kinetics following Leudeking-Piret model is

QUESTION ID:173

The addition of silicone antifoam to a production fermenter has the disadvantage of

QUESTION ID:174

In a two-step fermentation process to produce vinegar, starting from molasses, the metabolic product produced as an intermediate is

QUESTION ID:175

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

QUESTION ID:176

The substrate concentration used in Monod kinetics is the

QUESTION ID:177

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

QUESTION ID:178

In depth filtration, the material widely used is…………… fiber

QUESTION ID:179

In a fermentor without cooling coils and a single agitator if the height to diameter ratio is decreased,

QUESTION ID:180

The product concentration in an enzyme catalyzed reaction increases linearly with time. From this we can conclude that the

QUESTION ID:181

Generic drugs are introduced in the market as generic versions because they are

QUESTION ID:182

In an aerated bioreactor, the major increase in the oxygen transfer rate, when the stirrer speed is increased is because

QUESTION ID:183

Which of the following penicillins in current use represents an unmodified naturally occurring product?

QUESTION ID:184

A type of apomixis in which embryo sac develops from vegetative cells of the ovule is called

QUESTION ID:185

Banana bunchy top disease is transmitted by

QUESTION ID:186

The first product of photosynthesis in C3 plants is

QUESTION ID:187

Which one of the following requires back crossing?

QUESTION ID:188

nptII gene imparts resistance to

QUESTION ID:189

Agrobacterium mediated transformation of monocots requires the use of ______ for the induction of vir genes.

QUESTION ID:190

Which of the following techniques is used to obtain hybrids between two species with prefertilization barrier?

QUESTION ID:191

Which of the following is used most commonly in the plant tissue culture medium to induce multiple shoots ?

QUESTION ID:192

The chemical nature of GA3 is

QUESTION ID:193

Rice grains are deficient in

QUESTION ID:194

Lysimeter is used in the measurement of

QUESTION ID:195

Aerenchyma formation is related to which of the following hormones?

QUESTION ID:196

Barnase has----------activity

QUESTION ID:197

_______is used as a bacteriostat in the Agrobacterium mediated plant transformation experiments

QUESTION ID:198

Variation in clonally reproducing crop arises from

QUESTION ID:199

In the incomplete dominance of a monohybrid, the number of phenotypes in the F2 will be

QUESTION ID:200

Seeds germinating in dark beneath the surface of the soil undergo

QUESTION ID:201

The substrate for photorespiration is

QUESTION ID:202

Mating between individuals which are closely related by ancestry is called

QUESTION ID:203

 Engineering plants using chitinase gene leads to  development of 

QUESTION ID:204

The first GM potato developed at CPRI, India for increasing protein content in tubers consists of genes from

QUESTION ID:205

Hybridization between species followed by polyploidy is known as

QUESTION ID:206

Source of dwarfing genes in wheat is

QUESTION ID:207

Form of IPR that helped India win Basmati case is

QUESTION ID:208

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

QUESTION ID:209

Administration of the DPT vaccine (diphtheria toxoid, pertussis products, and tetanus toxoid) would stimulate which of the following types of immunity?

QUESTION ID:210

Which of the following events occurs first in the differentiation sequence of human B cells in the bone marrow?

QUESTION ID:211

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?

QUESTION ID:212

Which of the following cell types will be involved in an immediate hypersensitivity reaction due to an insect sting?

QUESTION ID:213

Which one of the following is NOT a function of glia?

QUESTION ID:214

Vagus nerve is a

QUESTION ID:215

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

QUESTION ID:216

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

QUESTION ID:217

Nerve bundles in vertebrates are likely to contain

QUESTION ID:218

In Parkinson’s disease, there is a predominant loss of dopaminergic neurons primarily in

QUESTION ID:219

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

QUESTION ID:220

Salmons return to their specific home stream to spawn. This is an example of

QUESTION ID:221

Mark the correct statement for a normal living excitable cell at rest. The ionic concentrations across the cell membrane are such that

QUESTION ID:222

If the sequence of the DNA sense strand is 5’ GATCCTATGCTAC 3’, then the transcribed mRNA sequence will be

QUESTION ID:223

Which of the following cells is important for generation of antigen-specific effector T-cells?

QUESTION ID:224

Which one of the following cells does not require processed antigen to lyse tumour cells?

QUESTION ID:225

Cyclosporin A is administered to patients undergoing transplantation because it

QUESTION ID:226

In flow cytometry ‘compensation’ is used to remove

QUESTION ID:227

The binding of IL-2 to its receptor in an activated T- cell is mediated by

QUESTION ID:228

The D gene segment of the TCR and BCR encodes for a part of the

QUESTION ID:229

Super antigens bind to

QUESTION ID:230

ELISPOT assay is used for measuring

QUESTION ID:231

Latency is a feature of which one of the following viruses?

QUESTION ID:232

Which one of the following codons is used for selenocysteine during protein biosynthesis?

QUESTION ID:233

Which of the following mechanisms is useful for removal of autoreactive T-cells by the immune system?

QUESTION ID:234

In bovines which one of the following is a milk borne infection?

QUESTION ID:235

Which one of the following diseases in animals is eradicated from India?

QUESTION ID:236

Which one of the following diseases is contracted by human beings mainly through agricultural occupation?

QUESTION ID:237

COFAL test is used for the diagnosis of

QUESTION ID:238

Blue tongue virus

QUESTION ID:239

Buparvoquone is the drug of choice against

QUESTION ID:240

Which one of the following is not the characteristic of Aflatoxicosis in chick?

QUESTION ID:241

Vomiting, grey foul smelling diarrhea and gastroenteritis in young dogs are characteristics of

QUESTION ID:242

Most commonly affected species with papillomavirus is

QUESTION ID:243

The animal that excretes most of the virus in foot and mouth disease by aerosols even before the appearance of clinical signs is