Q12 / 180 · NEET 2019 (All India) · Botany

The correct sequence of phases of cell cycle is:

A
$M \to G_{1} \to G_{2} \to S$
B
$G_{1} \to G_{2} \to S \to M$
C
$S \to G_{1} \to G_{2} \to M$
Correct answer
D
$G_{1} \to S \to G_{2} \to M$

Solution

Interphase accounts for almost $95 %$ of the total time required for the cell cycle. Interphase takes place in three stages; $G_{1}, S$ and $G_{2}$ proceeded by mitotic phase ( $M$ phase) and cytokinesis. The nuclear content of DNA is duplicated during the synthesis phase. So, the correct sequence is -

$G_{1} \to S \to G_{2} \to M$

Hence, the correct answer is option: 'D'.

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