Cell Cycle
At the center of the cell cycle control system is Cdk, a protein that

manufactures growth factors
is only active during mitosis
is phosphorylated to become active
binds to different cyclins

ANSWER DOWNLOAD EXAMIANS APP

Cell Cycle
The cell cycle is controlled in most cells by

time (after a certain length of time the cell divides)
a series of checkpoints
different cells exhibit different control strategies
cell size (when the cell reaches a certain size, it divides)

ANSWER DOWNLOAD EXAMIANS APP