A tumor suppressor gene undergoes a mutation that causes it to lose its normal function. What would be the most likely result of this mutation? A) the cell cycle halts and reverses back to the G ₀ stage B) the cell loses contact inhibition even when it is not surrounded by other cells C) the cell cycle accelerates D) the cell no longer responds to signals that cause it to stop dividing or undergo apoptosis E) the cell stops dividing permanently and will never re-enter the cell cycle

Question

Quizplus · Accepted Answer

Tumor suppressor genes help regulate cell division and promote apoptosis to prevent uncontrolled cell growth. When these genes lose function due to a mutation, the cell may no longer respond to normal signals that halt division or trigger apoptosis, potentially leading to cancer.

A Tumor Suppressor Gene Undergoes a Mutation That Causes It