Question

Select the incorrect statement regarding $S$ phase of interphase.

• A. It occurs between $G_{1}$ and $G_{2}$
• B. $DNA$ replicates in the nucleus in this phase
• C. Centrioies duplicate in the cytoplasm
• D. As $DNA$ is doubled, number of chromosomes also doubles

Answer 1

Answer: (D)

$S$ or synthesis phase marks the period during which $DNA$ synthesis or replication takes place. During this time the amount of $DNA$ per cell doubles, however, there is no increase in the chromosome number.