Which of the following molecules is synthesized at specific times during the cell cycle and forms an active complex with a kinase?

A)PDGF
B)MPF
C)Cdk
D)cyclin

D. Cyclin

Explanation:

Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.

it is either c or d and i know for sure it is not a or b