Proto-oncogenes code for proteins that regulate programmed cell death. If these genes mutate and turn into cancer-causing oncogenes, what will be the consequence to the cells when the apoptotic function is compromised?

• A. It will allow the cancer cells to survive longer.
• B. It will make cancer invulnerable to any treatment.
• C. It will make the cancer cells reproduce more quickly.
• D. It will make cancer mutate into a more dangerous form.

Answer: (A)