Question

P53 and p21 are examples of:

a. Oncogenes
b. tumor suppressors
c. checkpoint proteins
d. extrinsic apoptotic proteins
e. cyclin proteins

Answer 1

p53 is an example of a tumor suppressor gene, not an oncogene. It plays a crucial role in monitoring the integrity of the DNA and can induce cell cycle arrest or apoptosis if DNA damage is detected.

Step-by-step explanation:

The protein p53 is an example of a tumor suppressor gene, not an oncogene.

Tumor suppressor genes are responsible for inhibiting or slowing down the cell cycle and preventing the formation of tumors. p53 plays a crucial role in monitoring the integrity of the DNA and can induce cell cycle arrest or apoptosis if DNA damage is detected.