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)%0D%0AResponses%0D%0A%0D%0AG1%0D%0AG%0D%0A1%0D%0A Checkpoint%0D%0Acap g sub 1 Checkpoint%0D%0A%0D%0AG2%0D%0AG%0D%0A2%0D%0A Checkpoint%0D%0Acap g sub 2 Checkpoint%0D%0A%0D%0AM%0D%0AM%0D%0A Checkpoint%0D%0Acap m Checkpoint%0D%0A%0D%0ANo checkpoint meets these criteria.

Answer 1

The cell described is undergoing apoptosis before it reaches mitosis, and it has twice the amount of DNA for a typical cell of that type. This suggests that the cell is in the process of preparing for division but has encountered DNA damage that prevents it from proceeding normally.

In the cell cycle, the checkpoints serve as control mechanisms to ensure that the cell only proceeds to the next phase when it is ready. The G1 checkpoint checks for DNA damage before the cell commits to DNA replication. The G2 checkpoint checks for DNA damage after DNA replication and before the cell enters mitosis (M phase).

Since the cell has already duplicated its DNA (resulting in the "twice the amount of DNA") and is undergoing apoptosis, the likely checkpoint where the DNA damage prompted the cell to trigger apoptosis is the G2 checkpoint.

Therefore, the correct response is: G2 Checkpoint.