The Cell Cycle??????

Question

When does a cell make sure its DNA has been copied correctly before continuing in the cell cycle?

A. M phase

B. S phase

C. G2 checkpoint

D. G1 checkpoint

E. No checkpoint is needed, because the process always works perfectly.

Answer 1

I believe the answer is B

Answer 2

Although the DNA is replicated in the S phase, the checkpoint is in the G2 phase.