GATE BT year:2019 PYQs & Answers — Page 5

Questions 41–50 of 65. Imported answers require independent review unless marked reviewed.

Topic practice 65 questionsPage 5 of 7

Which of the following factors affect the fidelity of DNA polymerase in polymerase chain reaction?

P. Mg²⁺ concentration Q. pH R. Annealing temperature

Your answerChoose one option.

P and Q only

P and R only

Q and R only

P, Q and R

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Group I lists spectroscopic methods and Group II lists biomolecular applications of these methods. Match the methods in Group I with the applications in Group II.

Group I P. Infrared Q. Circular Dichroism R. Nuclear Magnetic Resonance

Group II

Identification of functional groups

Determination of secondary structure

Estimation of molecular weight

Determination of 3-D structure

Your answerChoose one option.

P-4, Q-3, R-1

P-2, Q-1, R-3

P-1, Q-2, R-4

P-3, Q-2, R-4

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The hexapeptide P has an isoelectric point (pI) of 6.9. Hexapeptide Q is a variant of P that contains valine instead of glutamate at position 3. The two peptides are analyzed by polyacrylamide gel electrophoresis at pH 8.0. Which one of the following statements is CORRECT?

Your answerChoose one option.

P will migrate faster than Q towards the anode

P will migrate faster than Q towards the cathode

Both P and Q will migrate together

Q will migrate faster than P towards the anode

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Antibody-producing hybridoma cells are generated by the fusion of a

Your answerChoose one option.

T cell with a myeloma cell

B cell with a myeloma cell

macrophage with a myeloma cell

T cell and a B cell

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Which of the following statements are CORRECT about the function of fetal bovine serum in animal cell culture?

P. It stimulates cell growth Q. It enhances cell attachment R. It provides hormones and minerals S. It maintains pH at 7.4

Your answerChoose one option.

P and Q only

P and S only

P, Q and R only

P, Q, R and S

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Which one of the following covalent linkages exists between 7-Methyl guanosine (m⁷G) and mRNAs?

Your answerChoose one option.

2′–3′ triphosphate

3′–5′ triphosphate

5′–5′ triphosphate

2′–5′ triphosphate

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Which one of the following amino acid residues will destabilize an α-helix when inserted in the middle of the helix?

Your answerChoose one option.

Pro

Val

Ile

Leu

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What is the solution of the differential equation

, with the initial condition, at

Your answerChoose one option.

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The Laplace transform of the function

Your answerChoose one option.

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Which of the following factors can influence the lag phase of a microbial culture in a batch fermenter?

P. Inoculum size Q. Inoculum age R. Medium composition

Your answerChoose one option.

P and Q only

Q and R only

P and R only

P, Q and R

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GATE BT year:2019 PYQs

Question 31

Question 32

Question 33

Question 34

Question 35

Question 36

Question 37

Question 38

Question 39

Question 40