A cancer cell has a mutation causing constitutive activation of a growth factor receptor. If a drug inhibits a key protein in the apoptosis pathway, which consequence follows?

💡 Explanation

If apoptosis is inhibited, cancer cells are no longer signaled to self-destruct. Because the apoptotic signals are blocked, the cells continue dividing, therefore resistance to apoptosis increases, rather than triggering cell cycle arrest through DNA damage checkpoints.

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