View the animation below, then complete the quiz to test your knowledge of the concept.

1	The success of DNA replication is assessed during the ______ phase.
	A)	G1
	B)	M
	C)	C
	D)	S
	E)	G2
2	The cell cycle is regulated by checkpoints during the _______ phases.
	A)	G1, S and G2
	B)	G1, S and C
	C)	G1, G2, and M
	D)	G1, S and M
	E)	G1, S, G2 and M
3	A eukaryotic cell that receives a “go-ahead” signal at the G1 checkpoint of the cell cycle will
	A)	complete the cycle and divide.
	B)	move directly into the M phase.
	C)	move directly into the G2 phase.
	D)	enter a resting stage.
	E)	stop growing.
4	Preparation for cell division occurs in the G2 phase.
	A)	True
	B)	False
5	After cytokinesis, the cell enters the G1 phase.
	A)	True
	B)	False