G1
Cell prepares to make DNA
RNA and protein synthesis and cell grows
S
DNA synthesis occurs
2 separate sets of chromosomes arise - one for each daughter cell
G2
DNA synthesis stops
Cell prepares for mitosis
M
Cell actually divides
G0
Not part of the cell cycle
Cell is not dividing
Cell can remain in this phase for days, weeks, years
Where is the restriction point in the cell cycle?
In phase G1