Question

In cell cycle, quiescent refers to which of the following phase?

• A. G${}_o$
• B. G${}_1$
• C. G${}_2$
• D. S

Answer 1

The correct option is A G${}_o$

The interphase of cell cycle normally comprises of first growth phase (G${}_1$ phase), synthesis phase (S phase) and second growth phase (G${}_2$ phase). Some cells pass on to G${}_o$ phase. It is a phase of cell quiescence when cell cycle is stopped before the middle of G${}_1$ phase due to the absence of cycling factors. They do not grow or differentiate but remain metabolically active to function as reserve cells.

So, the correct answer is option A.