Review the animation and answer the questions that follow to test your understanding.

1		Retroviruses have
			A)	one copy of single-stranded RNA
			B)	two copies of single-stranded RNA
			C)	one copy of double-stranded RNA
			D)	two copies of single-stranded DNA
2		The provirus state exists when
			A)	double-stranded viral DNA is integrated into host cell chromosome
			B)	single-stranded viral RNA is integrated into host cell chromosome
			C)	double-stranded viral RNA is integrated into host cell chromosome
			D)	single-stranded RNA is present as a plasmid in the host cell
			E)	double-stranded DNA is present as a plasmid in the host cell
3		If the DNA of the provirus is transcribed
			A)	several single mRNA strands are produced
			B)	a plasmid is made
			C)	the provirus detaches and becomes lytic
			D)	one long polygenic mRNA is produced
4		The polygenic mRNA codes for making one long polyprotein which is then cleaved into the separate individual virus proteins.
			A)	True
			B)	False
5		If the virus is present as a provirus in the host cell, it remains latent and never produces new virus.
			A)	True
			B)	False