Cell Cycle and Cell Division Question 1

1. Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (G0). This process occurs at the end of

(a) G1 phase

(b) S phase

(c) G2 phase

(d) M phase

Show Answer

Answer : d

Hints & Solutions

(d) Some dividing cells exit the cell cycle and enter vegetative inactive stage, called quiescent stage (G0). This process occurs at the end of M-phase and beginning of G1 phase. Human cancers have an apparent low growth fraction, the bulk of cells presumed to being out of cycle in a G0 quiescent state due to the inability in the past to distinguish G0 from G1 cells. Thus, human cancers are blocked in transition in G1 and are not predominantly in a G0 or quiescent differentiated state.



NCERT Chapter Video Solution

Dual Pane