Cell Cycle and Cell Division Question 11

11. In the somatic cell cycle

[2004]

(a) In $G_1$ phase DNA content is double the amount of DNA present in the original cell

(b) DNA replication takes place in S-phase

(c) a short interphase is followed by a long mitotic phase

(d) $G_2$ phase follows mitotic phase

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Answer : b

Hints & Solutions

(b) DNA replication is restricted to $S-$ phase of interphase. $G_2$ phase is followed by the mitotic phase which is shorter than the interphase. In $G_2$ phase, DNA content is double than the amount present in the original cell.



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