Regulatory proteins that serve to prevent a cell from entering the S phase under conditions of DNA damage are also known as _____.
A)cyclins
B)cyclin-dependent kinases
C)antibodies
D)tumor suppressors

Question

Quizplus · Accepted Answer

Regulatory proteins that prevent cells from entering the S phase under conditions of DNA damage are called tumor suppressors. Cyclins and cyclin-dependent kinases are proteins involved in regulating the cell cycle but are not specifically associated with preventing cells from entering the S phase under conditions of DNA damage. Antibodies are proteins produced by the immune system to recognize and neutralize foreign substances, and are not related to cell cycle regulation.

Regulatory Proteins That Serve to Prevent a Cell from Entering