The cell cycle is controlled in most cells by
A.time (after a certain length of time the cell divides)
B. a series of checkpoints
C. cell size (when the cell reaches a certain size, it divides)
D. different cells exhibit different control strategies
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Answer:
Correct answer is option (b) a series of checkpoints
Explanation:
The cell cycle is controlled at three checkpoints.
The integrity of the DNA is assessed at the G1 checkpoint. Proper chromosome duplication is assessed at the G2 checkpoint. Attachment of each kinetochore to a spindle fiber is assessed at the M checkpoint.
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