Regulation of Cell Cycle

AP Biology· difficulty 3/5

The G₂/M checkpoint ensures that

A
$Cell has reached sufficient size and growth signals are present$
B
$Cytokinesis has divided the cytoplasm equally between daughters$
C
$Sister chromatids are properly attached to opposite spindle poles$
D
$DNA is fully replicated and undamaged before mitosis begins$
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Explanation

Damaged or incompletely replicated DNA halts entry to mitosis; repair is attempted, or apoptosis triggered.

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