In which stages do internal checkpoints occur during the cell cycle?
a. Near the end of G1 and at the G2–M transition
b. Only during metaphase
c. Near the end of G1, at the G2–M transition, and during metaphase
d. Only at the end of the G2–M transition
c. Near the end of G1, at the G2–M transition, and during metaphase
Internal checkpoints occur during the cell cycle near the end of G1, at the G2–M transition, and during metaphase.
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