Cell Cycle and Cell Division Question 12
12. In cell cycle, DNA replication takes place in
(a) G1 phase
(b) G2 phase
(c) Mitotic metaphase
(d) $S$ phase
Show Answer
Answer : d
Hints & Solutions
(d) G1 phase, also called Gap I phase is characterized by increase in cell size. In the $S$ phase or synthetic phase DNA molecules replicate. G2 is the second growth phase. Gap II is the phase where in there is intensive formation of RNAs and proteins. In the mitotic metaphase, the chromosomes are arranged at the equatorial plate.
