TLS Online

Previous Year Questions

Performance Meter

TLS Online TPP Program

QUESTION ID:1

Which of the following sugar derivative(s) is found in bacterial cell wall?

(A). Lipopolysaccharide (LPS)

(B). Lipid A

(C). N-acetyl muramic acid

(D). D-galactosamine

Choose the correct answer from the options given below:

(A) and (C) only

(A), (B) and (C) only

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38909&year=2025&month=March

QUESTION ID:2

Name the phase of microbial growth cycle when there is no net increase or decrease in cell number.

Lag phase

Exponential phase

Stationary phase

Death phase

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38910&year=2025&month=March

QUESTION ID:3

The organisms which have the ability to grow in a very dry environment are known as:

Halophiles

Piezophiles

Xerophiles

Acidophiles

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38911&year=2025&month=March

QUESTION ID:4

Match List-I with List-II

List-I	List-II
(A). Chemostat	(I). The culture is maintained at high cell density by repeated addition of the nutrient till the reactor reaches its maximum capacity
(B). Turbidostat	(II). It is a closed culture system
(C). Batch culture	(III). Growth rate and cell density of the culture is controlled by the concentration of limiting nutrient
(D). Fed Batch Culture	(IV). Growth rate and cell density of the culture is controlled by the turbidity of the culture

Choose the correct answer from the options given below:

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(III), (B)-(II), (C)-(I), (D)-(IV)

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38912&year=2025&month=March

QUESTION ID:5

Calculate the melting temperature (°C) of the following primer:

Primer Sequence 5'-AGCTAATCCGGGCTACCG-3'

58 °C

52 °C

56 °C

39 °C

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38913&year=2025&month=March

QUESTION ID:6

Arrange the following steps of polymerase chain reaction in correct sequence.

(A). Annealing
(B). Denaturation
(C). Cooling at 4 °C
(D). Extension

Choose the correct answer from the options given below:

(A), (B), (C), (D)

(A), (B), (D), (C)

(B), (A), (D), (C)

(B), (C), (D), (A)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38914&year=2025&month=March

QUESTION ID:7

In a vector, antibiotic resistance is often used as a:

Screening marker

Selectable marker

Probe

Ori site marker

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38915&year=2025&month=March

QUESTION ID:8

Which of the following is the most abundant protein on earth?

Ribulose bisphosphate carboxylase

Glucose oxidase

Glutamate dehydrogenase

Transaminase

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38916&year=2025&month=March

QUESTION ID:9

Match List-I with List-II

List-I (Microorganism)	List-II (Category)
(A). Azotobacter	(I). Free living nitrogen fixing phototrophic bacteria
(B). Rhodobacter	(II). Free living nitrogen fixing chemoorganotrophic bacteria
(C). Rhizobium	(III). Free living nitrogen fixing chemolithotrophic bacteria
(D). Alcaligenes	(IV). Symbiotic nitrogen fixing bacteria associated with peas

Choose the correct answer from the options given below:

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(I), (B)-(III), (C)-(II), (D)-(IV)

(A)-(II), (B)-(I), (C)-(IV), (D)-(III)

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38917&year=2025&month=March

QUESTION ID:10

Which of the following biological materials has not been patented?

Oncomouse

Superbug

6-aminopenicillinic acid

DDT

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38918&year=2025&month=March

QUESTION ID:11

In vertical gel electrophoresis, the function of the β-mercaptoethanol is:

to provide charge to the primary structure of the protein

to oxidize the disulfide bond

to reduce the disulfide bond

provide density to the protein

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38919&year=2025&month=March

QUESTION ID:12

Match List-I with List-II

List-I (Author)	List-II (Contribution)
(A). Martinus Beijerinck	(I). One gene-one enzyme hypothesis
(B). Sergei Winogradsky	(II). First time isolation of nitrogen fixing bacterium Clostridium pasteurianum
(C). George Beadle and Edward Tatum	(III). Restriction enzymes
(D). Hamilton Smith, Daniel Nathans, Werner Arber	(IV). Enrichment culture technique

Choose the correct answer from the options given below:

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(IV), (B)-(II), (C)-(I), (D)-(III)

(A)-(II), (B)-(I), (C)-(IV), (D)-(III)

(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38920&year=2025&month=March

QUESTION ID:13

Arrange the steps followed in the differential Gram staining of bacteria.

(A). Add iodine solution for 1 minute

(B). Stain the smear with crystal violet for 1 minute

(C). Spread culture in thin film and air dry followed by heat fixing

(D). Counter stain the smear with safranin solution for 1-2 minutes

(E). Decolorize with alcohol briefly for 20 seconds

Choose the correct answer from the options given below:

(A), (B), (C), (D), (E)

(C), (B), (A), (E), (D)

(C), (A), (B), (D), (E)

(C), (B), (D), (E), (A)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38921&year=2025&month=March

QUESTION ID:14

Coenzymes and Prosthetic groups are small non-protein molecules that take part in catalysis. What is the major difference between the two cofactors?

Coenzymes are loosely bound while prosthetic groups are tightly bound to the enzyme

Coenzymes are tightly bound while prosthetic groups are loosely bound to the enzyme and can be easily extracted

Coenzymes are metal ions while prosthetic groups are derivatives of vitamins

NADP+ is an example of prosthetic group

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38922&year=2025&month=March

QUESTION ID:15

How many ATPs are produced on complete oxidation of 1 glucose molecule through oxidative phosphorylation and substrate-level phosphorylation?

30 oxidative phosphorylation, 8 substrate-level phosphorylation

34 oxidative phosphorylation, 4 substrate-level phosphorylation

32 oxidative phosphorylation, 4 substrate-level phosphorylation

33 oxidative phosphorylation, 2 substrate-level phosphorylation

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38923&year=2025&month=March

QUESTION ID:16

Flow of genetic information from DNA to RNA is known as transcription. Which of the following represents RNA transcript sequence for the given DNA molecule?

5'-TTAGCCTCGTGTAA-3'

3'-AATCGGAGCACATT-5'

5'-UUAGCCUCGUGUAA-3'

3'-AATCGGAGCACATT-5'

5'-AATCGGAGCACATT-3'

3'-UUAGCCUCGUGUAA-5'

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38924&year=2025&month=March

QUESTION ID:17

Match List-I with List-II

List-I (Enzyme)	List-II (Function)
(A). DNA Pol I	(I). Relaxes supercoils ahead of replication fork
(B). DNA gyrase	(II). Unwinds DNA double helix at replication fork
(C). DNA ligase	(III). Excises RNA primer and fills in gaps
(D). Helicase	(IV). Seals nicks in DNA

Choose the correct answer from the options given below:

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(I), (B)-(III), (C)-(II), (D)-(IV)

(A)-(I), (B)-(II), (C)-(IV), (D)-(III)

(A)-(III), (B)-(I), (C)-(IV), (D)-(II)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38925&year=2025&month=March

QUESTION ID:18

What is a missense mutation?

Mutation that does not affect phenotype of the cell.

Mutation that alters translation product to be made.

Mutation which always makes the protein non functional.

Mutation that codes for the same protein.

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38926&year=2025&month=March

QUESTION ID:19

Which of the following facts is/are true about Shuttle vectors?

(A). Vectors that have the capability to replicate in only related host organisms

(B). Vectors that have the capability to replicate in two unrelated host organisms

(C). Shuttle vectors have two origins of replication

(D). Shuttle vectors do not have a selection marker

Choose the correct answer from the options given below:

(A), (B) and (D) only

(A), (B) and (C) only

(B) and (C) only

(B), (C) and (D) only

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38927&year=2025&month=March

QUESTION ID:20

To purify RNA molecules, oligo dT containing matrix is used. This type of chromatography is:

Ion exchange chromatography

Affinity chromatography

Hydrophobic chromatography

Reverse phase chromatography

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38928&year=2025&month=March

QUESTION ID:21

Which of the following can not be separated using electrophoresis?

Nucleic acids

Lipids

Amino acids

Proteins

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38929&year=2025&month=March

QUESTION ID:22

Arrange the sequence of regulation of chemotaxis.

(A) Interaction with flagellar motor switch

(B) Adaptation

(D) Interaction of transducers and Che proteins

Choose the correct answer from the options given below:

(A), (B), (C), (D)

(C), (B), (D), (A)

(D), (C), (A), (B)

(B), (A), (D), (C)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38930&year=2025&month=March

QUESTION ID:23

Arrange the replication cycle of a bacterial virus.

(A) Synthesis of nucleic acid and protein by host cell

(B) Penetration of virion

(D) Assembly of capsid and packaging of genome into new virion

(E) Release of mature virions

Choose the correct answer from the options given below:

(A), (B), (C), (D), (E)

(A), (C), (B), (E), (D)

(C), (B), (A), (D), (E)

(C), (B), (D), (A), (E)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38931&year=2025&month=March

QUESTION ID:24

During cell cycle, DNA duplication and transcription occur during:

G1 phase

M phase

S phase

G2 phase

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38932&year=2025&month=March

QUESTION ID:25

Which of the following statements about Denitrification are true?

(A). Atmospheric nitrogen is easily used as a source of nitrogen by bacteria than nitrate.

(B). Denitrification is conversion of nitrate to gaseous nitrogen compounds.

(C). Denitrification is a detrimental process for agriculture.

(D). Denitrification is a beneficial process in waste water treatment.

Choose the correct answer from the options given below:

(A), (B) and (D) only

(B), (C) and (D) only

(A), (B), (C) and (D)

(A), (B) and (C) only

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38933&year=2025&month=March

QUESTION ID:26

Mycorrhizae is an association between:

Plant roots and Algae

Plant root and Protozoa

Plant roots and Fungi

Plant leaves and Algae

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38934&year=2025&month=March

QUESTION ID:27

Which of the following oligonucleotide probes (fluorescent tag) will hybridize to a target RNA sequence?

5'-GAAACCUCUGGCAAUCCGAUGUGCCAA-3'

5'-GAGACCGUUAGGCUACAC*-3'

3'-GAGACGGUAAGGCUACAA*-5'

3'-GACGGUAAGGCUACAA*-5'

3'-GAGACCGUUAGGCUACAC*-5'

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38935&year=2025&month=March

QUESTION ID:28

Which of the following is not used as mobile phase in gas chromatography?

Nitrogen

Helium

Oxygen

Hydrogen

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38936&year=2025&month=March

QUESTION ID:29

Arrange the following vectors on the basis of insert size carrying capacity.

(A). Cosmids

(B). Bacteriophages

(C). Plasmids

(D). Bacterial Artificial Chromosomes

Choose the correct answer from the options given below:

(A), (B), (C), (D)

(A), (B), (D), (C)

(B), (A), (D), (C)

(C), (B), (A), (D)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38937&year=2025&month=March

QUESTION ID:30

Which of the following technique is known as chain termination DNA sequencing method?

Maxum Gilbert sequencing

Sanger dideoxy DNA sequencing method

Next Generation sequencing

Shot gun sequencing

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38938&year=2025&month=March

QUESTION ID:31

Which of the following is not a fermented food product?

(A). Sauerkraut

(B). Sake

(C). Soy Sauce

(D). Ragi

Choose the correct answer from the options given below:

(A), (B) and (D) only

(B) and (C) only

(D) only

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38939&year=2025&month=March

QUESTION ID:32

Solutes in the environment change the availability of water molecules to microbes. Microbiologists quantitatively estimate the degree of water availability by determining:

Water quantity $(W_{G})$

Water available

(W_{z})

Water activity (aw)

Water retention (rw)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38940&year=2025&month=March

QUESTION ID:33

When a petite mutant isolated from aerobically cultured yeast is crossed with wild-type strain, the progeny obtained is all wild type. Identify the type of mutation.

Suppressive

Neutral

Segregational

Silent

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38941&year=2025&month=March

QUESTION ID:34

Which of the following is not a characteristic feature of actinomycetes?

Filamentous

High G+C content

Curved rods

Gram positive

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38942&year=2025&month=March

QUESTION ID:35

Which of the following are features of chlorosomes?

(A). Light harvesting

(B). Contain chlorophyll a

(C). Present in green bacteria

(D). Galactolipid membrane

Choose the correct answer from the options given below:

(A) and (D) only

(A) only

(A), (B) and (D) only

(A), (C) and (D) only

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38943&year=2025&month=March

QUESTION ID:36

What are the functions of peroxisomes in the cell?

(A). Peroxisomes are the sites where oxidation of substrates takes place and hydrogen peroxide is formed.

(B). Peroxisomes harbor catalase enzyme which decomposes hydrogen peroxide.

(C). In plants and fungi, fatty acid oxidation takes place in the peroxisomes.

(D). In animal cells, fatty acid oxidation takes place in the peroxisomes and mitochondria.

Choose the correct answer from the options given below:

(A), (B) and (D) only

(A), (B) and (C) only

(A), (B), (C) and (D)

(B), (C) and (D) only

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38944&year=2025&month=March

QUESTION ID:37

If organism A possesses 55% G+C content and organism B has 25% of the G+C content in their genome, what inference can be drawn?

Both organisms are closely related.

Both organisms are unrelated.

Both organisms belong to different taxon.

No inference can be drawn from this data.

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38945&year=2025&month=March

QUESTION ID:38

Out of all given options, which ones are stop codons?

UAA, UGA, UAG

UGG, UGA, UAC

UCC, UAA, UGC

UAC, UAG, UAA

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38946&year=2025&month=March

QUESTION ID:39

Which of the following is not an Antigen Presenting Cell?

B cell

Basophil

Dendritic cell

Macrophage

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38947&year=2025&month=March

QUESTION ID:40

Match List-I with List-II

List-I (Amino acids)	List-II (Side chain type)
(A). Cys	(I). basic
(B). Asp	(II). nonpolar aromatic
(C). Trp	(III). acidic
(D). Arg	(IV). sulphur containing

Choose the correct answer from the options given below:

(A)-(IV), (B)-(II), (C)-(III), (D)-(I)

(A)-(I), (B)-(III), (C)-(II), (D)-(IV)

(A)-(IV), (B)-(III), (C)-(II), (D)-(I)

(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38948&year=2025&month=March

QUESTION ID:41

Arrange the following steps of complement activation in the correct order.

(A). Formation of C3 convertase

(B). Binding of C1 to Antigen antibody complex

(C). Formation of MAC

(D). C5 convertase formation

Choose the correct answer from the options given below:

(B), (A), (C), (D)

(C), (B), (A), (D)

(A), (B), (C), (D)

(B), (A), (D), (C)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38949&year=2025&month=March

QUESTION ID:42

Enzyme sequence involved in formation of L-isoleucine from L-Threonine is regulated by:

Feedback inhibition

Competitive inhibition

Non-competitive inhibition

Specific inhibition

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38950&year=2025&month=March

QUESTION ID:43

Which of the following statements are true about human ABO blood groups?

(A). Glycosyltransferase enzyme is responsible for transfer of carbohydrate moiety on protein.

(B). Almost all individuals possess H substance.

(C). A antigen has one extra monosaccharide group N-acetylgalactosamine added to H substance.

(D). B antigen has one extra monosaccharide group galactose added to H substance.

Choose the correct answer from the options given below:

(A), (B) and (D) only

(A), (B) and (C) only

(A), (B), (C) and (D)

(B), (C) and (D) only

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38952&year=2025&month=March

QUESTION ID:44

Which of the following is not used as a cyanobacterial biofertilizer?

Cylindrospermum

Tolypothrix

Anabaena

Azospirillum

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38953&year=2025&month=March

QUESTION ID:45

Which of the following cause depletion of ozone layer?

Halogenated carbons, CFC, HCFC, HFC

Fluorinated carbons

Hydrocarbons

Photochemical products

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38954&year=2025&month=March

QUESTION ID:46

Arrange the steps of binary fission in a rod shaped prokaryote in sequence.

(A). Cell elongation

(B). Cell separation

(C). Septum formation

(D). DNA replication

Choose the correct answer from the options given below:

(A), (C), (D), (B)

(D), (A), (C), (B)

(A), (B), (C), (D)

(C), (A), (D), (B)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38956&year=2025&month=March

QUESTION ID:47

TCR of Cytotoxic T lymphocytes interacts with which of the following?

MHC-II

MHC-I

CD8

CD4

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38957&year=2025&month=March

QUESTION ID:48

The first cells to reach the site of inflammation are:

Neutrophils

Basophils

T cells

Macrophages

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38958&year=2025&month=March

QUESTION ID:49

Arrange the steps for wastewater treatment processes in correct sequence.

(A). Screening and Sedimentation

(B). Anoxic digestion and oxidation

(C). Separation into soluble and insoluble components

(D). Drying and Disinfection of the two components

Choose the correct answer from the options given below:

(A), (C), (B), (D)

(A), (B), (C), (D)

(B), (D), (A), (C)

(C), (A), (B), (D)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38959&year=2025&month=March

QUESTION ID:50

What is the major activity occurring in germinal centers?

Somatic mutation

Antigen entrapment

Antibody production

Antigen presentation

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QUESTION ID:51

Match List-I with List-II

List-I (Interaction type)	List-II (Effect)
(A). Commensalism	(I). Where one population derives food from the host without causing death of the host
(B). Competition	(II). Population one is inhibited and other is not affected
(C). Amensalism	(III). One population benefits and other population (host) is not affected
(D). Parasitism	(IV). Each species is directly inhibited by the other

Choose the correct answer from the options given below:

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

(A)-(I), (B)-(II), (C)-(IV), (D)-(III)

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38962&year=2025&month=March

QUESTION ID:52

Which of the following is an exotoxin producing anaerobic organism associated with food poisoning?

Clostridium botulinum

Staphylococcus aureus

Bacillus cereus

Giardia lamblia

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38963&year=2025&month=March

QUESTION ID:53

Which of the following is not a mechanism of antimicrobial resistance?

Alteration of target

Efflux pumps

Inactivation of antibiotic

Development of a new susceptible biochemical pathway

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38964&year=2025&month=March

QUESTION ID:54

Arrange the following intermediates on the basis of their synthesis in citric acid cycle.

(A). Citrate
(B). Succinyl CoA
(C). α-ketoglutarate
(D). Oxaloacetate

Choose the correct answer from the options given below:

(A), (B), (C), (D)

(A), (C), (B), (D)

(B), (D), (A), (C)

(A), (D), (C), (B)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38965&year=2025&month=March

QUESTION ID:55

Which of the following statements is/ are true about agglutination?

(A). Excess antibody inhibits agglutination reactions.

(B). Coombs test works on the principle of agglutination.

(C). Agglutination reactions work only with soluble antigens.

(D). The antibody titer is the lowest dilution of serum at which agglutination is observed.

Choose the correct answer from the options given below:

(A), (B) and (D) only

(A) and (B) only

(B), (C) and (D) only

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38966&year=2025&month=March

QUESTION ID:56

Arrange the steps in RNA synthesis in the correct order.

(A). Release of polymerase

(B). Release of sigma factor followed by elongation

(C). Recognition of promoter by sigma factor

(D). Identification of terminator site

Choose the correct answer from the options given below:

(A), (B), (C), (D)

(C), (B), (D), (A)

(B), (A), (D), (C)

(C), (D), (B), (A)

https://triyambak.org/courses/cuet-pg/tpp/pyq?qid=38967&year=2025&month=March

QUESTION ID:57

What is the function of impellers in a fermentor?

To increase the turbulence

To monitor temperature and pH

For oxygen mixing

To stir the medium

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QUESTION ID:58

Which of the following enzymes is responsible for synthesis of mRNA in prokaryotes? (DROP)

RNA Polymerase I

RNA Polymerase III

RNA Polymerase II

RNAse H

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QUESTION ID:59

Which of the following is an example of DNA containing virus?

Rabies virus

Polio virus

HIV Virus

Small pox virus

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QUESTION ID:60

Which of the following tests are used to check spoilage of milk?

(A). Clot on boiling test

(B). Resazurin reduction assay

(C). MBRT

(D). MPN test

Choose the correct answer from the options given below:

(A), (B) (D) only

(B) and (C) only

(A), (B), (C) and (D)

(A), (B) and (C) only

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QUESTION ID:61

Which of the following is not a feature of peptide bond?

Partial double bond character

Planar

Linear

Rigid

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QUESTION ID:62

Which of the following media is used for isolation of Staphylococcus?

McConkey Agar

Mannitol Salt agar

SS Agar

Lowstein Jenson Medium

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QUESTION ID:63

Which of the following is exclusively recessive X-linked trait ?

Cystic fibrosis

Red green colour blindness

Baldness

Albinism

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QUESTION ID:64

In a dihybrid cross, if the percentage of recombinant trait is 20%, what will be the distance between the genes?

2 map units/centimorgan

10 map units/centimorgan

20 map units/centimorgan

5 map units/centimorgan

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QUESTION ID:65

Which of the following is not a primary metabolite?

Enzymes

Antibiotics

Ethanol

Amino acids

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QUESTION ID:66

What is the mode of action of alcohol as a sanitizer and disinfectant?

Alkylating agent

Oxidizing agent

Protein denaturant

Cationic surfactant

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QUESTION ID:67

Which of the following is/are distinguishing features of group translocation?

(A). A molecule is chemically modified when transported into the cell.

(B). Molecule doesn't get modified during transport.

(C). Molecule gets phosphorylated during transport.

(D). It is a secondary active transport mechanism.

Choose the correct answer from the options given below:

(A), (B) and (D) only

(A), (B) and (C) only

(A) and (C) only

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QUESTION ID:68

Which of the following is not an asexual method of reproduction in fungi?

Gametangia

Arthrospores

Sporangiospores

Conidiospores

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QUESTION ID:69

Which of the following forms of DNA is produced with a DNA sequence made up from alternating purine and pyrimidine nucleotides?

(A). B form

(B). Z form

(C). A form

(D). C form

Choose the correct answer from the options given below:

(A) and (B) only

(B) only

(A) and (D) only

(A) and (C) only

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QUESTION ID:70

Match List-I with List-II

List-I (Technique)	List-II (Description)
(A). Study to analyze pools of DNA from an environmental sample containing organisms that have not been isolated and identified	(I). Proteomics
(B). Genome wide study of the structure, function and activity of organism's proteins	(II). Metagenomics
(C). Global study of transcription is done by monitoring the total RNA generated under chosen growth conditions	(III). Systems Biology
(D). The term used for integration of different fields of research to give an overview of an organism or a cell	(IV). Transcriptomics

Choose the correct answer from the options given below:

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(II), (B)-(I), (C)-(III), (D)-(IV)

(A)-(II), (B)-(I), (C)-(IV), (D)-(III)

(A)-(III), (B)-(I), (C)-(II), (D)-(IV)

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QUESTION ID:71

Which of the following statements is/ are applicable to fixed angle rotors?

(A). During rotor acceleration, reorientation of the sample and gradient occur.

(B). Sedimentation and separation of the particles occur during centrifugation.

(C). Bands of separated particles appear when the rotor is at rest.

(D). The centrifuge tube is filled with gradient and then loaded with sample.

Choose the correct answer from the options given below:

(A), (B) and (D) only

(A), (B) and (C) only

(A), (B), (C) and (D)

(B), (C) and (D) only

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QUESTION ID:72

Which of the following treaty/convention provided "international recognition of microorganisms" for the purpose of patent procedure?

Patent Cooperation Treaty

Paris convention

Strasbourg convention

Budapest Treaty

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QUESTION ID:73

B cell maturation in birds occurs in:

Bone marrow

Bursa of fabricius

Thymus

Lymph node

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QUESTION ID:74

Which of the following statements is true about the lac operon?

(A). Lac operon is under positive regulation through CRP.

(B). Lac operon has three structural genes.

(C). Lac repressor binds to the lac promoter.

(D). Lac operon is expressed in the presence of both glucose and lactose.

Choose the correct answer from the options given below:

(A) and (B) only

(A), (C) and (D) only

(B), (C) and (D) only

(B) and (D) only

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