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What is the purpose of checkpoints during the cell cycle?

A: to ensure the cell grows to its maximum size

B: To stop the cell cycle when the cell is not needed anymore

C: to speed up the process of cell division

D: to repair any damage to the DNA and ensure accurate replication

1 answer

The correct answer is:

D: to repair any damage to the DNA and ensure accurate replication.

Checkpoints in the cell cycle serve as surveillance mechanisms to monitor the integrity of the cell's DNA, assess whether the cell is ready to proceed to the next phase, and ensure that all cellular processes have been accurately completed before moving forward. This helps prevent the propagation of damaged or incomplete genetic material.