Where Do Apoptotic Signals Come From

Question

Where do apoptotic signals come from?
A) the nucleus only
B) the ER only
C) ligand binding only
D) mitochondrial protein leakage only
E) all of the above

Accepted Answer

Apoptotic signals can come from various sources including the nucleus, ER, ligand binding, and mitochondrial protein leakage. Therefore, option E, "all of the above", is the best choice.