Which of the following viruses would have a disrupted replication cycle if their reverse-transcriptase enzyme was non-functional?
A)Retroviruses
B)Double-stranded DNA viruses
C)Double-stranded RNA viruses
D)Negative-sense single-stranded RNA viruses
E)Positive-sense single-stranded RNA viruses

Question

Quizplus · Accepted Answer

Reverse-transcriptase is unique to retroviruses, which use it to convert their RNA genome into DNA for integration into the host cell's genome. If this enzyme is non-functional, retroviruses would be unable to complete their replication cycle. The other virus types listed do not rely on reverse-transcriptase for replication.

Which of the Following Viruses Would Have a Disrupted Replication