GATE BT branch:bt PYQs & Answers — Page 18

Questions 171–180 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 18 of 65

Match the item in Column I with the corresponding technique in Column II.

Column I: P. Blue laser Q. Tungsten filament R. ¹⁵N labeled protein S. Polyacrylamide

Column II:

Electron microscopy

Fluorescence activated cell sorting

Electrophoresis

Nuclear magnetic resonance spectroscopy

Your answerChoose one option.

P-2; Q-3; R-1; S-4

P-2; Q-1; R-4; S-3

P-3; Q-1; R-4; S-2

P-1; Q-2; R-4; S-3

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Match the genetic disorder (Column I) with its molecular basis (Column II).

Column I: P. Sickle-cell anemia Q. Xeroderma pigmentosum R. Tay-Sachs disease S. Down Syndrome

Column II:

Mutation in nucleotide excision repair

Trisomy of chromosome 21

Mutation in β-globin gene

Mutation in hexosaminidase A gene

Your answerChoose one option.

P-1; Q-4; R-2; S-3

P-3; Q-4; R-1; S-2

P-3; Q-1; R-4; S-2

P-4; Q-2; R-3; S-1

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The evolution of wings in bats and insects is an example of ______ evolution.

Your answerChoose one option.

convergent

divergent

neutral

parallel

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Which of the following statements is/are correct about an uncompetitive inhibitor of an enzyme?

Your answerSelect all correct options. You can choose more than one.

It binds to the substrate binding site of the enzyme only

It binds to the enzyme-substrate complex only

It reduces the Vmax of the enzyme

It binds to both free enzyme and enzyme-substrate complex

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Which of the following plant-based secondary metabolites belong(s) to the class of alkaloids?

Your answerSelect all correct options. You can choose more than one.

Ajmaline (C₂₁H₂₄N₂O₃)

Azadirachtin (C₃₅H₄₄O₁₆)

Camptothecin (C₂₀H₁₆N₂O₄)

Vinblastine (C₄₆H₅₈N₄O₉)

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Which of the following features help(s) in distinguishing alleles using restriction fragment length polymorphism (RFLP)?

Your answerSelect all correct options. You can choose more than one.

Differences in the number of recognition sites for a given restriction enzyme

Differences in the ability of alleles to undergo recombination

Differences in the ability of alleles to undergo segregation

Differences in the number of tandem repeats

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Which of the following is/are considered as biotic elicitor(s) in plant cell culture?

Your answerSelect all correct options. You can choose more than one.

Cellulase

Chitin

Chitosan

Mercuric chloride

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Under which of the following conditions, a mammalian somatic cell fails to undergo mitosis during cell cycle?

Your answerSelect all correct options. You can choose more than one.

Initiation of cell plate formation

Incomplete DNA replication

Chiasmata formation

Irreparable DNA damage

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Which of the following is/are synthetic auxin(s) that does/do NOT occur naturally?

Your answerSelect all correct options. You can choose more than one.

2,4-Dichlorophenoxyacetic acid

Indole-3-acetic acid

Indole-3-butyric acid

1-Naphthaleneacetic acid

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Which of the following statements regarding the below mentioned mRNA sequence is/are TRUE?

5-UGAUGACCUUACCGGAACGAAUUAA-3

Your answerSelect all correct options. You can choose more than one.

It contains nine codons in the reading frame

It contains ten codons in the reading frame

It codes for eight amino acids

It codes for nine amino acids

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GATE BT branch:bt PYQs

Question 41

Question 42

Question 43

Question 44

Question 45

Question 46

Question 47

Question 48

Question 49

Question 50