Cell Cycle and Cell Division Test

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Cell Cycle and Cell Division Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

M phase represents

A
Meiosis phase

B
Metaphase

C
Mitosis phase

D
Meiosis I phase

Solution

The M Phase represents the phase when the actual cell division or mitosis occurs/starts during cell cycle
Question 2
1 / -0

In animal cells, the mitotic division is seen in

A
diploid cells

B
haploid cells

C
Diploid somatic cells.

D
haploid somatic cells

Solution

In animals, mitotic cell division is only seen in the diploid somatic cell since mitosis produces cells with same number of chromosomes as that of parents.
Question 3
1 / -0

The stage of inactivation of cell cycle due to non-availability of mitogens and energy rich compounds is called

A
S-phase

B
Interphase

C
Quiescent phase

D
M-phase

Solution

It is the stage of cell cycle during which the cells remain metabolically active and do not divide due to absence of mitogens and energy producing compounds.
Question 4
1 / -0

Which of the following is true about meiosis?

A
Meiosis maintains constant number of chromosomes in an organ.

B
Meiosis provides opportunity for the exchange of genes.

C
Meiosis causes genetic variations among the species.

D
All of the above
Question 5
1 / -0

In animal cells, during G2 phase

A
middle lamellae are formed

B
DNA are synthesized

C
spindle fibres are formed

D
Proteins are synthesized

Solution

During the G2 phase, proteins and RNA are synthesised in preparation for mitosis while cell growth continues.
Question 6
1 / -0

Each chromosome consists of ---- chromatid.

A
One

B
Two

C
Eight

D
Four

Solution

The resulting two identical copies of DNA are connected to each other at the centromere. Each copy is called a chromatid. A chromosome, before cell division is formed of one chromatid while it is formed of two chromatids after cell division.
Question 7
1 / -0

How many chromosomes are present in each cell of onion root tip?

A
2 chromosomes

B
16 chromosomes

C
3 chromosomes

D
4 chromosomes

Solution

Onion root tip cells have 16 chromosomes in each cell, same as the number of chromosomes in somatic cells.
Question 8
1 / -0

Colchicine is employed to diploid a haploid cell as it

A
inhibits karyokinesis

B
inhibits formation of mitotic spindle

C
allows replication of DNA twice in one cell cycle

D
inhibits formation of centromere
Question 9
1 / -0

Which of the following states of cell cycle is attained when the cell has undergone differentiation?

A
G₀

B
G₁

C
G₃

D
G₃

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Cell Cycle and Cell Division Test - 1

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Cell Cycle and Cell Division Test - 1

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Question 1

Meiosis phase

Metaphase

Mitosis phase

Meiosis I phase

Solution

Question 2

diploid cells

haploid cells

Diploid somatic cells.

haploid somatic cells

Solution

Question 3

S-phase

Interphase

Quiescent phase

M-phase

Solution

Question 4

Meiosis maintains constant number of chromosomes in an organ.

Meiosis provides opportunity for the exchange of genes.

Meiosis causes genetic variations among the species.

All of the above

Question 5

middle lamellae are formed

DNA are synthesized

spindle fibres are formed

Proteins are synthesized

Solution

Question 6

One

Two

Eight

Four

Solution

Question 7

2 chromosomes

16 chromosomes

3 chromosomes

4 chromosomes

Solution

Question 8

inhibits karyokinesis

inhibits formation of mitotic spindle

allows replication of DNA twice in one cell cycle

inhibits formation of centromere

Question 9

G0

G1

G3

G3

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G₀

G₁

G₃

G₃