Question

A cell has damaged DNA, which checkpoint is responsible for checking this? A: m checkpoint B: G2 checkpoint C: G1 checkpoint

Answer 1

B

Step-by-step explanation:

Answer 2

The answer is B: G2 checkpoint.

Cell cycle checkpoints are control mechanisms necessary for proper cell division. In the cell cycle, there are two checkpoints: the G1 checkpoint and the G2 checkpoint. The G1 checkpoint is right before the S phase, and G2 checkpoint is right before the M phase.
The G2 checkpoint is a DNA damage checkpoint and if DNA is damaged, entering the cell cycle is delayed before mitosis (M phase).