Multiple Choice
Which of the following is a mechanism by which antiviral medications can inhibit viral replication?
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1. Introduction to Microbiology
Acellular Infectious Agents: Viruses, Viroids & Prions
Multiple Choice
Double-stranded viral DNA is incorporated into a host cell as a _____.
A
viroid
B
prion
C
provirus
D
plasmid
Verified step by step guidance1
Understand the context: When a double-stranded viral DNA enters a host cell, it integrates into the host's genome or exists in a form that allows it to persist and replicate within the host.
Recall definitions: A 'viroid' is a small infectious RNA molecule without a protein coat, and a 'prion' is an infectious protein, neither of which involve double-stranded DNA.
Consider 'plasmid': Plasmids are circular DNA molecules found in bacteria that replicate independently, but viral DNA integration into a host genome is different from plasmid replication.
Identify the term for viral DNA integrated into the host genome: This integrated viral DNA is called a 'provirus', which can remain latent or be transcribed to produce new viruses.
Conclude that the correct term for double-stranded viral DNA incorporated into a host cell is 'provirus'.
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