Cell Biology MCQ Questions & Answers

11

Which one of the following intermediate filament proteins is present in the nucleus?

A) Vinculin B) Lamin C) Nestin D) Laminin

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Answer & Solution

Answer: Option B

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12

Secretory proteins synthesized by ER-associated ribosomes traverse through

A) Mitochondria B) Peroxisomes C) The Golgi apparatus D) The nucleus

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Answer & Solution

Answer: Option C

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13

Which one of the following result is expected when a mammalian cell in S-phase is fused with another in G2?

A) G2 phase nucleus will wait for S-phase nucleus to complete the replication and both the nuclei simultaneously enter into M-phase B) S-phase nucleus would immediately enter into G2 phase without completing the replication phase C) Both the nuclei would follow their corresponding cell cycle without influencing each other D) Due to influence of S-phase promoting factor, G2-phase nucleus will enter into S-phase

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Answer & Solution

Answer: Option A

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14

If a fluorescent dye is injected into the lumen of the endoplasmic reticulum (ER), in which of the following compartments can fluorescence signal can be observed?

A) ER only B) Golgi only C) ER and Golgi D) ER, Golgi and nuclear envelope

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Answer & Solution

Answer: Option D

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15

In a typical mitotic cell division cycle in eukaryotes, M phase occurs immediately after the

A) G₀ phase B) S phase C) G₁ phase D) G₂ phase

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Answer & Solution

Answer: Option D

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16

In the course of cell cycle, the level of the protein cyclin abruptly falls during

A) G₁ phase B) S phase C) G₂ phase D) M phase

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Answer & Solution

Answer: Option D

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17

Hayflick limit of mammalian cells refers to which one of the following?

A) Cells in primary cell culture undergo senescence after 50-60 passages B) Primary cells cultured in vitro do not cross the limit of cell transformation C) Cell lines when cultured in vitro have a limit for their surface to volume ratio D) Malignant cell lines undergo senescence after 50-60 passages

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Answer & Solution

Answer: Option A

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18

A cargo has to be delivered from the centre of the cell to the cell periphery using the microtubule network. To which proteins does it need to be associated with

A) Dynein B) Kinesin C) Microtubule associated protein-4 D) Myosin

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Answer & Solution

Answer: Option B

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19

Match the items in Group I with Group II.

Group I	Group II
P. Receptor tyrosine kinase	1. Inactivation of G-proteins
b. Q. Cyclic GMP (cGMP)	2. Reception of insulin signal
R. GTPase activating protein (GAP)	3. Thyroid hormone
S. Nuclear receptor	4. Receptor guanylyl cyclase

A) P-1, Q-3, R-4, S-2 B) P-2, Q-4, R-3, S-1 C) P-3, Q-1, R-4, S-2 D) P-2, Q-4, R-1, S-3

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Answer & Solution

Answer: Option D

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20

In a migrating cell the relative position of the . . . . . . . . and the . . . . . . . . determines the polarity of the cell

A) Nucleus, Golgi B) Golgi, Centriole C) Nucleus, Mitochondria D) Golgi, Mitochondria

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Answer & Solution

Answer: Option A

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Cell Biology MCQ Questions &amp; Answers | Biotechnology

Cell Biology MCQ Questions & Answers | Biotechnology