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