Question

Assertion (A) Some cells undergo $G _{0}$-phase due to inactivation of cell cycle.
Reason (R) Cells at this stage remain metabolically active, but no longer proliferate.

• A. If both A and R are true and R is the correct explanation of A
• B. If both A and R are true, but R is not the correct explanation of A
• C. If A is true, but R is false
• D. If A is false, but R is true

Answer 1

Answer: (B)

Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
$G _{0}$-phase is the permanent or temporary exit from the $G _{1}$-phase. Cells in this phase remain metabolically active but do not proliferate unless called on to do so depending on the requirement of the organism.