Microbiology 9th Edition by Laura Black, Jacquelyn Black

تمرين 32

All of the following are true about retroviruses EXCEPT:
(a) Retroviruses cause tumors and leukemia in rodents, birds, and humans.
(b) Retroviruses cause acquired immune deficiency syndrome (AIDS) in humans.
(c) Retroviruses contain reverse transcriptase to form a complementary strand of DNA, which is then replicated to form double-stranded DNA (dsDNA).
(d) dsDNA must migrate to the cell nucleus and integrate into the chromosomes of the host, whereby it becomes a provirus.
(e) Retroviruses have two complete copies of (−) sense RNA.