NEETBotanyCell Cycle and Cell Division
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Interphase is called the resting phase, during which the cell prepares for division by undergoing cell growth and DNA replication in an orderly manner. Reason (R): The orderly sequence of phases in interphase is G ₁ G ₂ S , ensuring that DNA is replicated just before mitosis begins. In the light of
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct but (R) is not the correct explanation of (A)
- C(A) is not correct but (R) is correct
- D(A) is correct but (R) is not correct
Correct answer
D. (A) is correct but (R) is not correct
Step-by-step solution
According to NCERT, the interphase, though called the resting phase, is the time during which the cell prepares for division by undergoing both cell growth and DNA replication in an orderly manner. Thus, Assertion (A) is correct. The correct chronological sequence of interphase is G ₁ S G ₂ . The Reason statement incorrectly places the G ₂ phase before the Synthesis ( S ) phase. Therefore, Reason (R) is not correct. Answer: (A) is correct but (R) is not correct