B Cell Division (Cell Cycle, Mitosis, Meiosis and Their Significance ) NEET Questions

Biology - Cell Structure and Function

B Cell Division (Cell Cycle, Mitosis, Meiosis and Their Significance ) MCQ Questions


13.
Which enzyme is responsible for breaking down cohesin proteins during anaphase?
A.
DNA polymerase
B.
RNA polymerase
C.
Separase
D.
Ligase
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ANSWER :
C. Separase
14.

Which of the following is a key difference between mitosis and meiosis?

NEET - 2016

A.

Mitosis results in four daughter cells; meiosis results in two.

B.

Mitosis occurs only in germ cells; meiosis occurs in somatic cells.

C.

Mitosis involves two divisions; meiosis involves one.

D.

Mitosis results in two diploid daughter cells; meiosis results in four haploid cells.

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ANSWER :

D. Mitosis results in two diploid daughter cells; meiosis results in four haploid cells.

15.

In which phase of the cell cycle does the cell grow and produce proteins necessary for DNA replication?

NEET - 2018

A.

G1 phase

B.

S phase

C.

G2 phase

D.

M phase

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ANSWER :

A. G1 phase

16.

The separation of sister chromatids occurs during which phase of mitosis?

NEET - 2019

A.

Prophase

B.

Metaphase

C.

Anaphase

D.

Telophase

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ANSWER :

C. Anaphase

17.
In which stage of the cell cycle does the nuclear membrane dissolve?
A.
G1 phase
B.
S phase
C.
Prophase
D.
Anaphase
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ANSWER :
C. Prophase
18.
What is the significance of meiosis in sexual reproduction?
A.
Maintains chromosome number
B.
Increases cell size
C.
Reduces mutations
D.
Promotes asexual reproduction
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ANSWER :
A. Maintains chromosome number