Defects in cell signaling can lead to a cancerous cell as a result of:
A)overproduction of signals that trigger cell division.
B)overproduction of a receptor that triggers cell division.
C)a defective receptor that stays in the activated state and triggers cell division continuously.
D)a defective signal transduction protein that stays in the activated state and triggers cell division continuously.
E)All of these choices are correct.

Question

Quizplus · Accepted Answer

All of the choices mentioned can lead to the development of cancerous cells. Overproduction of signals that trigger cell division can lead to uncontrolled cell proliferation. Overproduction of a receptor that triggers cell division can also result in excessive cell growth. A defective receptor or signal transduction protein that stays in the activated state and triggers cell division continuously can cause uncontrolled cell growth and progression to cancer. Therefore, all of the choices listed can contribute to the development of cancerous cells.

Defects in Cell Signaling Can Lead to a Cancerous Cell