The initiation of both the S phase and the M phase of the cell cycle depends on pairs of molecules called _______ and _______.
A) actin; myosin
B) Cdk; cyclin
C) ligand; receptor
D) maturation promoting factor; growth factor
E) ATP; ATPase

Question

Quizplus · Accepted Answer

The initiation of the S phase and the M phase of the cell cycle is regulated by the activity of cyclin-dependent kinases (Cdks) and cyclins. Cdks are activated by the binding of specific cyclins, leading to the phosphorylation of target proteins that drive the cell cycle forward.

The Initiation of Both the S Phase and the M