Cell Cycle And Cell Division Ques 51
51. In the somatic cell cycle, DNA replication occurs during the S phase.
[2004]
(a) In $G_1$ phase DNA content is the same as the amount of DNA present in the original cell
(b) DNA replication takes place in S-phase
(c) A long interphase is followed by a short mitotic phase
(d) $G_2$ phase follows mitotic phase
Show Answer
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 that of the amount present in the original cell.
BETA
