AP BIOLOGY

CELL DIVISION

CELL DIVISION AND CANCEROUS CELLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is true regarding checkpoints?
A
Cyclin is made at a constant rate by cell unless signaled otherwise
B
CDK is used up each time the cell divides
C
MPF is a combination of cyclin and bicycles
D
Cyclin is an enzyme
Explanation: 

Detailed explanation-1: -Cell cycle checkpoints are surveillance mechanisms that monitor the order, integrity, and fidelity of the major events of the cell cycle. These include growth to the appropriate cell size, the replication and integrity of the chromosomes, and their accurate segregation at mitosis.

Detailed explanation-2: -Cyclins are named such because they undergo a constant cycle of synthesis and degradation during cell division.

Detailed explanation-3: -So, the correct answer is ‘ G1

There is 1 question to complete.