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Animation Quiz 3 - Replication Cycle of a Retrovirus
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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







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