GATE BT topic:cell-biology PYQs & Answers — Page 3

Questions 21–25 of 25. Imported answers require independent review unless marked reviewed.

Topic practice 25 questionsPage 3 of 3

Which one of the following statements is true for actin?

Your answerChoose one option.

Actin filament is structurally polarized and the two ends are not identical

De novo actin polymerization is a single-step process

The pointed end of the actin filaments is the fast growing end

Actin forms spindle fibers during mitosis

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Secretory proteins synthesized by ER-associated ribosomes traverse through

Your answerChoose one option.

mitochondria

peroxisomes

the Golgi apparatus

the nucleus

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In eukaryotes, cytokinesis is inhibited by

Your answerChoose one option.

cytochalasin D

vinblastine

nocodazole

colchicine

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Match the proteins in Group I with cellular processes in Group II.

Group I: P. p53; Q. Lysozyme; R. Tubulins; S. Histones

Group II: 1. DNA packaging; 2. Apoptosis; 3. Hydrolysis of polysaccharides; 4. Chromosome segregation

Your answerChoose one option.

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

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

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

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

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The genome is diploid at the end of which phases of a human mitotic cell cycle?

Your answerChoose one option.

G2 & S

G1 & M

M & S

G1 & G2

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GATE BT topic:cell-biology PYQs