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← Human Body & HealthIf a growth factor receptor on a cancer cell acquires a mutation preventing cyclin-dependent kinase (CDK) inhibition despite checkpoint activation, which consequence follows?
A)Apoptosis proceeds as planned
B)Uncontrolled cell division proceeds✓
C)DNA repair mechanisms are activated
D)Cell cycle arrests indefinitely
💡 Explanation
Uncontrolled cell division proceeds because the mutated growth factor receptor bypasses the normal CDK inhibition checkpoint. The mutation causes unchecked signaling, therefore the cell continues to divide rapidly rather than undergoing apoptosis, DNA repair, or permanent cell cycle arrest.
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