GATE BT format:mcq PYQs & Answers — Page 32

Questions 311–320 of 389. Imported answers require independent review unless marked reviewed.

Topic practice 389 questionsPage 32 of 39

If serum is removed from the growth medium of human embryonic kidney cell line (HEK), then the cells will

Your answerChoose one option.

proliferate faster

proliferate normally

undergo cell cycle arrest

undergo immediate apoptosis

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The repeat sequence of telomere in humans is

Your answerChoose one option.

5′-TTAAT-3′

5′-TTAGG-3′

5′-GGCCC-3′

5′-AAAAA-3′

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If a segment of a sense strand of DNA is 5′-ATGACAGA-3′, then the resulting RNA sequence after transcription is

Your answerChoose one option.

5′-AGACCAGTA-3′

5′-UCGUCCAU-3′

5′-UACCUGUCU-3′

5′-AUGACAGA-3′

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Which one of the following is an example of a neurotoxin?

Your answerChoose one option.

Cholera toxin

Streptolysin-O

Botulinum toxin

Diphtheria toxin

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Which of the following components constitute a molecular mechanics force field?

P. Bond stretching Q. Bond angle bending R. Torsional bond rotation S. Non-bonded interactions

Your answerChoose one option.

P and Q only

P, Q and R only

P, Q and S only

P, Q, R and S

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Which one of the following BLAST search programs is used to identify homologs of a genomic DNA query in a protein sequence database?

Your answerChoose one option.

blastp

blastn

blastx

tblastn

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A mixture contains three similarly sized peptides P, Q and R. The peptide P is positively charged, Q is weakly negative and R is strongly negative. If this mixture is passed through an ion-exchange chromatography column containing an anionic resin, their order of elution will be

Your answerChoose one option.

P, Q, R

R, Q, P

Q, R, P

P, Q and R elute together

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Which one of the following is INCORRECT about protein structures?

Your answerChoose one option.

A protein fold is stabilized by favorable non-covalent interactions

All parts of a fold can be classified as helices, strands or turns

Two non-covalent atoms cannot be closer than the sum of their van der Waals radii

The peptide bond is nearly planar

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Which one of the following metabolic processes in mammalian cells does NOT occur in the mitochondria?

Your answerChoose one option.

Citric acid cycle

Oxidative phosphorylation

Fatty acid β-oxidation

Glycolysis

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Which one of the following is NOT a principal component of innate immunity?

Your answerChoose one option.

Mucosal epithelia

Dendritic cells

Complement system

Memory B-cells

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GATE BT format:mcq PYQs

Question 2

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Question 5

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Question 7

Question 8

Question 9

Question 10

Question 11