Progression through the cell cycle
(I)is regulated by cyclins.
(II)is controlled by Cdks.
(III)is altered by CKIs.
A)I only
B)II only
C)III only
D)II ,III
E)I,II,III

Question

Quizplus · Accepted Answer

The progression through the cell cycle is regulated by several factors, including cyclins, Cdks, and CKIs. Cyclins are regulatory proteins that control the progression from one phase of the cycle to the next by binding and activating Cdks. Cdks, in turn, phosphorylate specific substrates to carry out the necessary cellular processes. CKIs are proteins that inhibit Cdks, slowing down or stopping the cell cycle progression. Therefore, all options (I, II, and III) are correct, and the best choice is E, which includes all of them.

Progression Through the Cell Cycle