Question

Match the following time spans with their actual phases in a eukaryotic cell cycle.

Column I Column II

i). 10 hr a. M Phase

ii). 9 hr b. $G_2$ Phase

iii). 4 hr c. S Phase

iv). 1 hr d. $G_1$ Phase

• A. i).$\to$ a., ii).$\to$ b., iii).$\to$ c., iv). $\to$ d.
• B. i).$\to$ d., ii).$\to$ c., iii).$\to$ b., iv).$\to$ a.
• C. i).$\to$ c., ii).$\to$ d., iii).$\to$ a., iv). $\to$ b.
• D. i).$\to$ b., ii).$\to$ a., iii).$\to$ d., iv). $\to$ c.

Answer 1

The correct option is B

i).$\to$ d., ii).$\to$ c., iii).$\to$ b., iv).$\to$ a.

On an average, a human cell spends 24 hours of time to divide once, with the time span of phases as:

d. $G_1$-phase - 10 hrs (i),

c. S-phase - 9 hrs (ii),

b. $G_2$-phase - 4 hrs (iii) and

a. M-phase - 1hr (iv).

Therefore, the correct option is B. - i).$\to$ d., ii).$\to$ c., iii).$\to$ b., iv). $\to$ a.