AP Biologymediummcq1 pt
The M checkpoint ensures
A.all chromosomes are attached to spindle fibers
B.the cell has enough nutrients
C.DNA replication is complete
D.the cell is large enough
Explanation
Core Concept
Anaphase waits until every kinetochore is properly attached to opposite poles, preventing nondisjunction and chromosome loss.
Correct Answer
Aall chromosomes are attached to spindle fibers
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