A cell contains DNA damage that causes it to undergo apoptosis before reaching mitosis. This cell had twice the amount of DNA for a cell of this type. During which checkpoint did this cell trigger apoptosis?(1 point)

Question

Responses

G1


G2

M

No checkpoint meets these criteria.

Answer 1

The cell likely triggered apoptosis during the G2 checkpoint.

In the cell cycle, the G2 checkpoint is responsible for ensuring that all the DNA has been properly replicated and that there are no DNA damages before the cell enters mitosis (M phase). Since the cell had twice the amount of DNA, which suggests abnormalities in DNA content, it would be assessed at the G2 checkpoint. If the DNA damage is discovered at this point, it would trigger apoptosis to prevent the damaged cell from dividing.

Therefore, the correct answer is G2.