Cell Cycle & Chromosomes - Class 10 Biology

Question 1

The period during which cell is prepared to divide-

Accepted Answer

Cell cycle

Answer

Cell growth

Answer

Cell Division

Answer

Cell prepare

Question 2

During which phase synthesis of RNA occurs ?

Accepted Answer

$G_1$ phase

Answer

$G_2$ phase

Answer

S phase

Answer

All of the above

Question 3

During which phase the number of DNA is doubled?

Accepted Answer

S phase

Answer

$G_1$ phase

Answer

$G_2$ phase

Answer

M phase

Question 4

During which phase Replication of centrosome occurs?

Accepted Answer

M phase

Answer

$G_1$ phase

Answer

$G_2$ phase

Answer

S phase

Question 5

During which phase cell checks its error?

Accepted Answer

$G_2$ phase

Answer

$G_1$ phase

Answer

S phase

Answer

M phase

Question 6

Interphase = ___+___+___

Accepted Answer

$G_1+G_2+S$

Answer

$G_1+G_2+M$

Answer

$G_1+G_2$

Answer

$G_1+S+M$

Question 7

Which of the following is a guardian protein?

Accepted Answer

$P^{83}$

Answer

$P^{53}$

Answer

$P^{93}$

Answer

$P^{63}$

Question 8

Why Mitosis division is called equational division?

Accepted Answer

Chromosome no. remains same in progeny cells

Answer

It divides the cell into 2 halves

Answer

It divides the chromosome no.

Answer

All the above

Question 9

Mitosis occurs in : i. Somatic cell ii. Reproductive cell

Accepted Answer

Only i

Answer

Only ii

Answer

Both i & ii

Answer

Neither i nor ii

Question 10

What is role of Guardian protein in cell division?

Accepted Answer

To bring the cell cycle to halt until the error is corrected

Answer

To check the error

Answer

To stop the cell cycle

Answer

To initiate the cell cycle

CHAPTER-1 CELL CYCLE,CELL DIVISION & STRUCTURE OF CHROMOSOMES (SET-1)

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