Which of the following is true concerning a lysogenic viral replication cycle?
a. During lysogeny, the viral DNA is present as a circular plasmid.
b. During lysogeny, the viral genome integrates into the host DNA, becoming a physical part of the chromosome.
c. Once the lysogenic portion of the cycle has begun, virus is never produced again.
d. Lysogenic infections are similar to persistent infections, in that virus is constantly produced.
Answer: b. During lysogeny, the viral genome integrates into the host DNA, becoming a physical part of the chromosome.
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