Defects in cell signaling can lead to a cancerous cell as a result as ________.?
1) overproduction of signals that trigger cell division.
2) overproduction of a receptor that triggers cell division.
3) a defective receptor that stays in the activated state and triggers cell division continuously.
4) All of these choices are correct.
5) a defective signal transduction protein that stays in the activated state and triggers cell division continuously.