Menu

Previous Year Questions

TLS Online TPP Program

QUESTION ID:1

Match items in List I w ith items in List II


Choose the correct answer from the options given below :

QUESTION ID:2

Match items in List I with items in List II:

Choose the correct answer from the options given below :

QUESTION ID:3

Identify the INCORRECT statement about mitochondria

QUESTION ID:4

Which one of the following statements regarding miRNA is INCORRECT?

QUESTION ID:5

Match items in List I with items in List II :

Choose the correct answer from the options given below : 

QUESTION ID:6

The rate constant of a first order reaction has the unit

QUESTION ID:7

How many grams of NaOH is required to make 100 ml of 0.2 M solution of NaOH?

QUESTION ID:8

Match items in List I with items in List II

Choose the correct answer from the options given below

QUESTION ID:9

How many oxygen atoms, in terms of Avogadro's number (NA), are present in 9.0 g of H20?

QUESTION ID:10

Polymerisation of isoprene gives

QUESTION ID:11

How many pi-bonds are present in cyano-benzene?

QUESTION ID:12

Given below are two statements: 
Statement I : Penicillin is an antibiotic derived from fungus. 
Statement II : Antibiotics are compounds obtained from micro-organisms and are used as pain killers. 

In light of the above statements, choose the correct answer from the options given below: 

QUESTION ID:13

In which of the following collisions, the total linear momentum of two colliding bodies is completely conserved?

QUESTION ID:14

Arrange the following in the ascending order of their frequencies
(A) Ultraviolet Rays
(B) Microwaves
(C) X-rays
(D) Sound waves
(E) Infrared waves

Choose the correct answer from the options given below :

QUESTION ID:15

The value of acceleration due to gravity on the surface of earth is g. If diameter of earth becomes 4 times its present value and mass remains unchanged, the new value of g on the surface of earth will be

QUESTION ID:16

A ball is thrown vertically upwards in the air with a certain velocity (v). Its acceleration and velocity at the highest point, respectively, will be

QUESTION ID:17

The velocity of light in vacuum is 3 x 108 m/s. If the refractive index of glass is 1.5, what will be the velocity of light in glass?

QUESTION ID:18

Sunita is looking for her father. She went 90 m east before turning to her right. She went 20 m, took a right turn and walked for 30 m to look for her father at her uncle's place. Not finding him there, she went 100 m to the North before meeting her father in a street. How far is Sunita from her starting point? 

QUESTION ID:19

If sales tax is reduced from then what will be the reduction in the net price of an article with a marked value of â‚¹ 8,400?

QUESTION ID:20

15 men, working 9 h a day, can reap a field in 16 days. In how many days will 18 men reap the same field, working 8 h a day?

QUESTION ID:21

A 150 m long train is running with a speed of 68 km/h. How long will it take for the train to pass a man who is running at 8 km/ h in the same direction as the train?

QUESTION ID:22

What is the value of 'a' in the equation given below?


QUESTION ID:23

380 bananas are distributed among 85 students. Each boy student gets four bananas and each girl student gets five. The number of boys is

QUESTION ID:24

In a certain code language, '134' means 'good and tasty'; '478' means 'see good pictures' and '729' means 'pictures are faint'. Which of the following digits stands for 'see'?

QUESTION ID:25

In a row of boys, A who is 10th from the left and B who is 9th from the right interchange their positions. A now becomes 15th from the left. How many boys are there in the row?

QUESTION ID:26

Find the next number in the series 84, 83, 79, 70, 54

QUESTION ID:27

10 workers working for 9 hours a day complete a piece of work in 20 days. In how many days will 15 workers working for 12 hours complete the same piece of work?

QUESTION ID:28

A, B and C started a business and invested capital in the ratio of 3 : 2 : 1. The ratio of months for which they invested is 3 : 5 : 4 . If A's profit share is ₹ 1000/- more than C's, then B's share in the profit in Rs will be 

QUESTION ID:29

Ram invested Rs. 75,000 in a business. After few months, Shyam also joined him with an investment of Rs. 50,000/-. At the end of the year the total profit was divided between them in 3 : 1 ratio. After how many months did Shyam join the business?

QUESTION ID:30

Fill the missing number in the given series 4, 6, 10, 18, ----------------  66,130

QUESTION ID:31

From a point, Ram started walking towards east and walked 30 meter. He then turned right and walked 20 meter. Then, he again turned right and walked 42 meter. Finally, he again turned right and walked 15 meter to reach his destination. What is the aerial distance between his destination and the starting point?

QUESTION ID:32

A man is facing east. He turns 60 degrees in the clockwise direction and then another 180 degrees in the same direction. He then turns 210 degrees in the anticlockwise direction. Which direction is he facing now?

QUESTION ID:33

In School A and School B, 20% and 25% of the students participate in sports, respectively. If School B has 60% more students than School A, then the number of students participating in sports in School A is

QUESTION ID:34

Which one of the following is the lowest integer that is divisible by each of the integers 1 through 8, both inclusive?

QUESTION ID:35

A tap X fills a tank in 5 hours. Another tap Y fills the same tank in 3 hours. If X starts filling the empty tank and tap Y joins after 1 hour, then how much time will it take for the tank to be completely filled starting from the time when the tap X started filling it?

QUESTION ID:36

If day 1 of a leap year is a Sunday, the last day of that year will be

QUESTION ID:37

A glass jar contains 1 red, 3 green, 2 blue and 4 yellow marbles. If a single marble is chosen at random from the jar, what is the probability that it is yellow or green?

QUESTION ID:38

The product of two numbers is 24 times the difference of these two numbers. If the sum of these numbers is 14, then the larger number is

QUESTION ID:39

Identify the number of triangles in the following figure


QUESTION ID:40

Identify the total number of rectangles in the given figure


QUESTION ID:41

Find the odd one out of the following

QUESTION ID:42

Identify the next number in the following series 8, 3, 16, 9, 32, 27, 64, ...

QUESTION ID:43

If the length of the sides of an equilateral triangle is doubled then its area increases by

QUESTION ID:44

In a class of 60 students, 30 students have taken Physics; 30 Chemistry and 30 Biology. There are 10 students each who have taken a combo of 2 subjects i.e. Phy-Chem, Phy-Bio and Chem-Bio. The number of students who have taken all 3 subjects is

QUESTION ID:45

How many unique 15-mer peptides are possible using 20 natural amino acids?

QUESTION ID:46

The sum of 10 consecutive natural numbers is 605. What will be the value of the smallest of these numbers?

QUESTION ID:47

A trader allows successive discounts of 30% and 15% on selling price of an article. If he gets Rs. 476 for the article, its marked price is

QUESTION ID:48

A cylindrical vessel of diameters 8 cm is partially filled with water. What will be the rise in the level of water in the cylindrical vessel when a solid ball of radius 3cm is completely immersed in water?

QUESTION ID:49

How many lead shots of diameter 2 cm can be made out of lead cube with edge of 22 cm?

QUESTION ID:50

From a pack of 52 cards, one card is drawn at random. What is the probability that the card drawn is a four or a club?

QUESTION ID:51

What is the relationship between doubling time and specific growth rate of a microbial culture?

QUESTION ID:52

Given below are two statements: One is labelled as Assertion A and other is labelled as Reason R.
Assertion (A) : All expression vectors are also cloning vectors.
Reason (R) Expression vectors contain the features of the cloning vectors.

In light of the above statements, choose the correct answer from the options given below

QUESTION ID:53

An athlete participating in an early morning marathon before breakfast is likely to derive most of the energy for muscles from

QUESTION ID:54

Which one of the following techniques will you use to resolve proteins ONLY on the basis of their molecular weight?

QUESTION ID:55

Given below are two statements: One is labelled as Assertion (A) and other is labelled as Reason (R)
Assert ion (A) : Spectrophotometry is a technique used for quantitative estimation of biomolecules in a solution.
Reason (R): Spectrophotometry is based on the Bragg's Law.

In light of the above statements, choose the correct answer from the options given below :

QUESTION ID:56

Which one of the following techniques is used for detecting protein-protein interactions in vivo?

QUESTION ID:57

What is the purpose of using quantitative real time PCR (qRT-PCR)?

QUESTION ID:58

Which one of the following methods is based on the binding of Coomassie Brilliant Blue to proteins to determine the protein concentration?

QUESTION ID:59

Match the items in List I with items in List II :

Choose the correct answer from the options given below :

QUESTION ID:60

How much calcium chloride is required to make 40 ml of 0.02 M solution? Assume molecular weight of calcium chloride is 219. 

QUESTION ID:61

Given below are two statements :
Statement I : The Michaelis constant {Km) characterizes the affinity of an enzyme to its substrate.
Statement II : Higher the value of the Michaelis constant (Km), stronger is the binding of the enzyme to the substrate.

In light of the above statements, choose the correct answer from the options given below:

QUESTION ID:62

In a Chemostat, which one of the following would increase the exit cell concentration?

QUESTION ID:63

Which one of the following uses a photocell to measure the cell density of a culture to regulate the flow of culture media?

QUESTION ID:64

In a bioprocess mainly producing cell biomass, if the microbial cell yield has halved, what would be the rate of substrate consumption to maintain the same rate of cell mass production?

QUESTION ID:65

The first commercially produced plant secondary metabolite using plant suspension culture in bioreactor was

QUESTION ID:66

Two proteins have approximately the same molecular weight and isoelectric point. The best way to resolve them would be using

QUESTION ID:67

Sugarcane molasses containing 50% sucrose, 1 % invert sugars, 18% water and 31 % other solids is mixed with corn steep liquor containing 2.5% invert sugars, 50% water and 47.5% other solids to produce a diluted sugar mixture containing 2% invert sugars. 125 kg corn steep liquor and 45 kg molasses are fed into the mixing tank. How much water should be added to the mixing tank to produce the desired diluted sugar mixture?

QUESTION ID:68

A bacteria l culture, with the molecular formula - C4.4 H7.3 01.2 N0.86 is cultivated under aerobic conditions with hexadecane (C16H34) as substrate. The growth can be described by equation: C16H34 + 16.28O2 + 1.42NH3 âž” 1.65C4.4  H7.3O1.2 N0.86 + 8.74CO2 + 13.11 H2O. Assuming 100% conversion, the yield of cell mass from hexadecane will be

QUESTION ID:69

For an enzyme following Michaelis-Menten kinetics, the catalytic efficiency of the enzyme is measured by

QUESTION ID:70

An airlift bioreactor uses

QUESTION ID:71

In alcoholic fermentation, CO2 is evolved during

QUESTION ID:72

During the life cycle of microbes, at which stage do they produce primary metabolites?

QUESTION ID:73

Under high concentration of glucose, ethanol production by yeast cells, instead of increasing cell mass via TCA cycle is described as

QUESTION ID:74

A strain of E coli is cultured in a 15 m3 mechanically stirred bioreactor. Under the operating conditions, the value of kLa is 0.17 s-1. Oxygen solubility in the broth is 8x 10-3 kgm -3 . If the specific rate of O2 uptake is 12.5 mmoles.g-1 .h-1, what is the maximum possible cell concentration?

QUESTION ID:75

A bioreactor of volume 1 m3 is operated continuously under steady state with inlet substrate concentration of 10 Kg.m3 . The organism being cultivated has µm = 0.30 h-1 and saturation constant (Ks) = 0.5 g.l- 1. The feed flow rate required to achieve 90% conversion of the substrate will be

QUESTION ID:76

Which one of the following statements is correct?

QUESTION ID:77

What is the mutation rate per generation for humans?

QUESTION ID:78

In nature, 20 different amino acids can be coded by 4 different nucleotides (A, T, G & C). Suppose the number of available nucleotides increases to 6 (A, T, G , C, X & Y), for the genetic code to be made up of codons having equal number of nucleotides, what would be the minimum number of nucleotides required for each codon?

QUESTION ID:79

Match the items in List I with the items in List II

Choose the correct answer from the options given below:

QUESTION ID:80

The following sequence of DNA seems to form a structure.
5' ATCCGTGAATTACGGAT 3'
When the third base is changed from C to G the DNA loses its structure. However if in the background of this change, the 15th base (which is the 3rd last one) is changed from G to C, the DNA regains back its structure. The most plausible reason for these observations is

QUESTION ID:81

Given below are two statements :
Statement I : Unfolded protein response occurs when cells a re stressed.
Statement II : Unfolded protein response is a hallmark response by the nucleus to protect the genome.

In light of the above statements, choose the correct answer from the options given below :

QUESTION ID:82

While analyzing a multiple sequence alignment of homologous protease sequences, the following was observed:
The 14th position was variable but always encoded by a hydrophobic amino acid.
The 17th position was conserved and was Serine in all the sequences.
The 29th position was variable but always encoded by an Aspartate or a Glutamate.
The 50th position was conserved and always encoded by a Phenylalanine.

Which statements do you think a re consistent with the above observations?
(A) Residue 14th is a buried amino acid.
(B) 17th position may be part of the active site of the protein.
(C) 29th residue is a buried amino acid.
(D) 50th position is an exposed amino acid.
Choose the correct answer from the options given below:

QUESTION ID:83

The âˆ†G of unfolding reaction of a monomeric protein Folded â†” Unfolded Varies with the concentration of Guanidine Hydrochloride [GdnHCl) with the following relationship 
∆.G = m x [GdnHCl] + 10kCal/mol Where, m = -2 kCalMOl-1M- 1. What is the [GdnHCl] at which half of the protein is unfolded?

QUESTION ID:84

A protein X forms dimer. X-X â†” X+X The KD of the reaction is 1 µM. At 1 µM concentration of the monomer X, what is the concentration of dimer of X.

QUESTION ID:85

Sometimes phi and psi angles can be used to construct the 3D structure of a protein. Which one of the following statements are true with respect to this process?
(A) The omega angle is required to model the final 3D structure.
(b) phi and psi are not sufficient to model the 3D positions of the side chain atoms.
(C) The allowed regions of Ramachandran Map is sufficient to model the 3D structure ab initio
(D) phi and psi are sufficient to fix all main chain atoms except for Glycine which is achiral.

Choose the correct answer from the options given below :

QUESTION ID:86

Which one of the following forward primer(s) will you use to amplify the DNA sequence given below?
5' ATGCAATCGATGCCGATC 3'
3' TACGTTAGCTACGGCTAG 5'

QUESTION ID:87

Approximately how many helical turns are generally present in a 4800 bp long, non-supercoiled B-DNA?

QUESTION ID:88

Which one of the following is formed when the cytosine base is deaminated?

QUESTION ID:89

After solving a protein structure by X-ray crystallography you found that a few residues are in the disallowed region of the Ramachandran Map. Which one of the following are plausible explanations for this observation?
(A) There may be errors in the structure of these residues
(B) There may be side-chain interactions in those residues that off-set the disallowed cost
(C) The protein may have a lot of Proline residues
(D) The protein may not be in a proper folded state when it was crystallized

Choose the correct answer from the options given below:

QUESTION ID:90

Real time PCR was done with the two patient samples, A and B, to detect SARS -CoV-2 virus. The Ct value obtained in patient sample A was higher than that obtained in patient sample B. The inference to be drawn from this observation is that the

QUESTION ID:91

RNAi was discovered in

QUESTION ID:92

Which one of the following statements about neutrophils is INCORRECT?

QUESTION ID:93

Generation of a DNA probe using random primer technique uses a combination of oligonucleotides 6 bp in length. How many number of distinct oligonucleotides are possible if all four nucleotides are randomly incorporated?

QUESTION ID:94

Which one of the following is likely to happen when a double-stranded DNA solution is heated?

QUESTION ID:95

Which one of the following is NOT primarily a microtubule -based structure? 

QUESTION ID:96

There are twenty amino acids. How many different polypeptide chains of 'N' number of amino acids are possible?

QUESTION ID:97

Which one of the following organisms requires a Biosafety level 3 facility for culture and manipulation as per extant biosafety regulations?

QUESTION ID:98

The process by which the genetic material can be transferred from one bacterium to another by a virus is known as

QUESTION ID:99

In a newly discovered type of genetic material (with similar properties to our own DNA)there were four nucleotides, L, M, N and O. L and M were complementary and paired with one hydrogen bond between them and N and O were complementary and paired with 2 hydrogen bonds between them. Given this, which one of following sequences would have the highest melting temperature in their double-stranded form ?

QUESTION ID:100

DNA polymerase 1 from Escherichia coli lacks which one of the following enzyme activities?

QUESTION ID:101

Transmission of organisms from mother to fetus or new born child is known as Vertical transmission of infection. Which one of the following is most likely to transmit vertically?

QUESTION ID:102

Which one of the following combinations of the drugs acts to inhibit the same metabolic pathway?

QUESTION ID:103

Which one of the following statements is NOT correct about human immunodeficiency virus (HIV)?

QUESTION ID:104

India has major burden of tuberculosis (TB) which is caused by Mycobacterium tuberculosis. Efforts are on to eliminate TB by 2025 and effective prophylaxis against the disease can be achieved with the BCG vaccine, which has been developed from

QUESTION ID:105

Flow cytometry is an analytical technique that quantifies the frequencies of cells binding to fluorescent antibodies and scattering light in characteristic ways. When a flow cytometer is used to sort cell subpopulations on the basis of florescence and light scattering it is referred to as Fluorescence Activated Cell Sorting (FACS). Which one of the following statement is NOT correct regarding FACS?

QUESTION ID:106

While running in the 200 meter race in National Games, the required ATP generation in the athlete is primarily facilitated by:

QUESTION ID:107

A slide of macrophages was stained by immunofluorescence using a monoclonal antibody for the TAP1/TAP2 complex. Which one of the following intracellular compartments would exhibit positive staining with this antibody?

QUESTION ID:108

Given below are two statements :
Statement I : Agglutination is a simple. inexpensive, rapid and highly specific immunological test that is widely performed in diagnostic laboratories. For example, it is often used for human blood typing based on the presence of specific antigens on the surface of red blood cells, which vary among individuals.
Statement II : Agglutination is routinely used in clinical laboratories for determining HIV-infected CD4 + cells.
In light of the above statements, choose the correct answer from the options given below :

QUESTION ID:109

The vaccine for cervical cancer is composed of

QUESTION ID:110

Match the items in List I with the items in List II :

Choose the correct answer from the options given below :

QUESTION ID:111

Which one of the following anti biotic specifically inhibits RNA synthesis?

QUESTION ID:112

Given below are two statements :
Statement I : If one parent carries the defective Huntington disease gene, his or her offspring have a 100% chance of inheriting the disease
Statement II : Huntington disease is an autosomal dominant genetic disorder
In light of the above statements, choose the correct answer from the options given below :

QUESTION ID:113

Functional magnetic resonance imaging (fMRI) is one of the most powerful methods for examining brain function. This method is based on the changes in the magnetic properties of

QUESTION ID:114

Which one of the following diseases is due to severe deficiency of proteins in diet?

QUESTION ID:115

Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Mycoplasma stains negative in Gram staining.
Reason (R) : Mycoplasma's cell wall is devoid of teichoic acid.
In light of the above statements, choose the correct answer from the options given below :

QUESTION ID:116

Which one of the following is responsible for development of myelin sheath in the central nervous system?

QUESTION ID:117

Which one of the following brain regions are NOT involved in eye movement control?

QUESTION ID:118

Which one of the following disorders leads to hallucinations?

QUESTION ID:119

In absolute refractory period of neurons

QUESTION ID:120

Phagocytosis in the central nervous system involves

QUESTION ID:121

What attribute do DREB transcription factors impart to higher plants?

QUESTION ID:122

Quantitative Trait Loci (QTL) can be mapped using

QUESTION ID:123

Given below a re two statements :
Statement I : Heterologous expression of prokaryotic genes in plants can be used to render resistance against insects.
Statement II : Expression of BtCry1Ac gene in cotton improves resistance against aphids.
In light of the above statements, choose the correct answer from the options given below :

QUESTION ID:124

Targeted gene disruption CANNOT be achieved by

QUESTION ID:125

Centimorgan (cM) is defined as the genetic distance between two loci with a statistically corrected recombination frequency of

QUESTION ID:126

Upon entering the cells, Cauliflower Mosaic Virus (CaMV) accumulates in inclusion bodies in which part of the cells?

QUESTION ID:127

Which one of the following genes provide herbicide tolerance?  

QUESTION ID:128

During cell cycle, genome replication occurs in 

QUESTION ID:129

Plant transformation method that uses tungsten or gold particle coated with DNA accelerated at a high velocity is called:

QUESTION ID:130

Which one of the following chemicals enhances vir gene expression in Agrobacterium? 

QUESTION ID:131

In monocot seedlings the highest concentration of auxin is found in the 

QUESTION ID:132

In plants, which stage of somatic embryo development requires ABA in culture medium?

QUESTION ID:133

A classical plant breeder wants to develop a disease resistant variety. What is the first step?

QUESTION ID:134

Which class of enzymes catalyzes the formation of oxalo -acetic acid from phosphoenol pyruvic acid in the chloroplasts of mesophyll cells?

QUESTION ID:135

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R :
Assertion (A) : The major factors influencing the water potential in plants are solute concentration, pressure and gravity.
Reason (R): Turgor pressure in xylem vessel is responsible for generating the water potential.
In light of the above statements, choose the most appropriate answer from the options given below :

QUESTION ID:136

Which one of the following is the correct sequence of electron transfer in the thylakoid membrane during light cycle of photosynthesis?

QUESTION ID:137

Vinblastine and vincristine, the potent anticancer metabolites present in Catharanthus roseus, accumulate in which one of the following? 

QUESTION ID:138

Which one of the following is the immediate effect of ABA-dependent stomatal closure in plants?

QUESTION ID:139

The ABC model of flower development determines organ arrangement in the sequence sepal, petal, stamen and carpel. Due to the loss of Class A gene functions, the observed phenotype will be

QUESTION ID:140

Which one of the following enzymes is administered to dissolve blood clots during heart attack treatment?

QUESTION ID:141

Which one of the following anti-diabetic drugs is produced by coupling of GLP-1 peptide with lgG-Fc?

QUESTION ID:142

Match the enzymes in List I with their products items in List II:

Choose the correct answer from the options given below : 

QUESTION ID:143

Given below are two statements :
Statement I : Both aspirin and paracetamol belong to non -narcotic analgesics.
Statement II : The synthesis of prostaglandins, which stimulate inflammation in the tissue causing pain, is inhibited by aspirin.
In light of the above statements, choose the correct answer from the options below :

QUESTION ID:144

Given below are two statements :
Statement I : The manufacturing process of SARS-CoV-2 mRNA vaccine requires synthesis of mRNA from DNA using in vitro transcription.
Statement II : The naked mRNA is administered intramuscularly to the vaccine recipients to generate a protective immune response.
In light of the above statements, choose the correct answer from the options given below :

QUESTION ID:145

Saccharomyces cerevisiae was grown in batch fermentation mode to produce ethanol. The rate of ethanol production in the exponential phase was 2 g/L/h, which decreased to 1 g/L/h after sometime. Which of these is least likely to be responsible for this?

QUESTION ID:146

The aspect ratio (based on height & diameter) of a tower reactor is

QUESTION ID:147

The average molecular weight of a nucleotide base in oligonucleotides is 330. What would be the amount required to prepare 100 µL of 1 µM solution of a 20 bp long single stranded DNA?

QUESTION ID:148

Yeast are facultative anaerobes - they can grow anaerobically during alcoholic fermentation and aerobically using oxygen for cellular respiration. Interestingly, wild type yeast cannot live anaerobically using glycerol as their only fuel source. Which one of the following is the correct explanation ?

QUESTION ID:149

The pelleting of microsomal fraction from liver homogenate sample was performed using a centrifuge operated a t 15000 rpm. What is the angular velocity of centrifuge in rad/s?

QUESTION ID:150

Which one among the following CANNOT induce cell flocculation?

QUESTION ID:151

Which one of the following is the Del factor value for sterilizing a culture medium containing 1011 viable bacterial cells? 

QUESTION ID:152

Exponential growth of a bacterial culture in batch mode is usually defined by the equation dX/dt = µX, where µ is

QUESTION ID:153

During a fermentation process, the feed is sterilized using wet-heat sterilization method. What will happen to D-value, if the solute concentration in the feed increases by fourfold?

QUESTION ID:154

You have mixed 100 ml of 0.5 M solution of glucose and 200 ml of 0.5 M solution of glucose. The resultant solution will contain

QUESTION ID:155

The penicillin extraction process involves the following steps:
A. Extraction from the organic solvent into an aqueous buffer
B. Extraction from the aqueous buffer into an organic solvent
C. Extraction of penicillin from the filtered broth into organic solvent
D. Extraction of solvent to obtain penicillin salt
Choose the correct sequence of steps from the options given below :

QUESTION ID:156

Suppose that an obligate anaerobe suffered a mutation that resulted in the loss of triose phosphate isomerase activity. What will be the net ATP yield under anaerobic condition?

QUESTION ID:157

Which of the following processes can be utilized for sterilization of medium with heat sensitive components?

QUESTION ID:158

Bacillus polymyxa strain was cultivated under anaerobic condition in a media containing 10 g/L glucose as the sole carbon source. The glucose was completely utilized in 10 h producing 2, 3-Butanediol with productivity of 5 g/L/h. What is the yield of 2, 3- Butanediol produced per gram of glucose consumed (g/g)? 

QUESTION ID:159

If the partitioning coefficient (K) of a solute is 20 when it is extracted by an organic solvent from culture medium, what is the amount of solvent required per litre of culture medium to extract 90% of the solute in a single equilibrium stage? 

QUESTION ID:160

With respect to Good Manufacturing Practices and Process Safety, HACCP stands for

QUESTION ID:161

Which of the following ISO standards is designed for Food Safety Management?

QUESTION ID:162

Which of the following methods is used for rapid and accurate detection of toxic organisms in food?

QUESTION ID:163

An investigation of an outbreak of food poisoning following consumption of cultivated mussels showed the presence of a glutamate antagonist known as domoic acid in the body of the affected persons. What is the source of the domoic acid?

QUESTION ID:164

Which among the following bacteria is the most heat tolerant? 

QUESTION ID:165

The recent advancements in computing that has exponentially enhanced computing power for bioinformatics include

QUESTION ID:166

The researchers are looking for a possible DNA-binding groove in a protein structure. It is most likely to be a

QUESTION ID:167

Which one of the following CANNOT be used to determine the atomic structure of proteins?

QUESTION ID:168

Which one of the following represents the structure of silk protein fibroin?

QUESTION ID:169

Which one of the following amino acid residue pairs can disrupt α-helices?

QUESTION ID:170

Organic solvent acetone denatures proteins by 

QUESTION ID:171

The Levinthal paradox is related to 

QUESTION ID:172

Which one of the following does NOT assist protein folding?

QUESTION ID:173

The amino acid glycine is always present in

QUESTION ID:174

In α-helices, hydrogen bonds are formed in the polypeptide backbone between the -C=O group of the first amino acid and the

QUESTION ID:175

The number of base pairs present per helical turn in B-DNA is

QUESTION ID:176

Molecular Dynamics does NOT involve calculations of  

QUESTION ID:177

Alphafold is a protein folding algorithm based on

QUESTION ID:178

For phylogenetic analysis, which of the following is correct?

QUESTION ID:179

The following BLAST statistic does NOT change for same pair-wise alignments with different query databases; 

QUESTION ID:180

Which one of the following statements is correct?

QUESTION ID:181

Which one of the following is an example of a global alignment algorithm?

QUESTION ID:182

Which one of the following statements is correct?

QUESTION ID:183

The researchers are interested in solving the structure of a given protein through X-ray diffraction crystallography. Which one of the following types of proteins is likely to be more difficult to crystallize?

QUESTION ID:184

BLAST is popular tool to search for sequences similar to a given sequence (query) against a given database, and it often sorts resulting matches according to the e -value. Which one of the following statements is INCORRECT with respect to this e -value?

QUESTION ID:185

Johne's disease in ruminants is caused by 

QUESTION ID:186

Prolactin, the hormone that controls milk production is secreted by 

QUESTION ID:187

One health approach to address the challenge of Anti-microbial resistance involves addressing 

QUESTION ID:188

Somatic cell cloning involves transfer of

QUESTION ID:189

Sperm production is regulated by which one of the following cells of the seminiferous tubules

QUESTION ID:190

Ozone depletion is caused by increase in the level of 

QUESTION ID:191

The efficiency of an organic sludge composting method can be improved by various physicochemical options. Which one of the following is NOT a recommended option for the same?

QUESTION ID:192

A bacterium useful in bioleaching of low-grade mineral ores is 

QUESTION ID:193

Which of the following is NOT a ground water remediation technology? 

QUESTION ID:194

Find the t heoretical oxygen demand to completely oxidize 1.67 x 10-3 M glucose solution (C6H12O6) to CO2 and H2O. 

QUESTION ID:195

What mass of CO2 would be produced if 100 gm of butane (C4H10) is completely oxidized to CO2 and H2O? 

QUESTION ID:196

In India, which one of the following parameter is NOT a part of day -to-day Air Quality Monitoring? 

QUESTION ID:197

Which of the following is NOT a part of Integrated Solid Waste Management? 

QUESTION ID:198

Naupilus is a larval stage of 

QUESTION ID:199

Collagen is a source of 

QUESTION ID:200

Which of the following bioactive metabolites can be isolated from sea cucumbers?