Which of the following types of animal virus requires RNA-dependent RNA transcriptase to be replicated?
A) +ssRNA viruses
B) ssDNA viruses
C) -ssRNA viruses
D) retroviruses
E) dsDNA viruses

Question

Quizplus · Accepted Answer

-ssRNA viruses require RNA-dependent RNA transcriptase to be replicated as they have a negative-sense RNA genome that cannot serve as a template for protein synthesis unless it is first transcribed into a complementary positive-sense RNA by the enzyme. +ssRNA viruses have a positive-sense RNA genome that can serve as a template for immediate translation into proteins. Retroviruses have a RNA genome that is reverse transcribed into DNA, which is then integrated into the host cell genome. ssDNA viruses have a single-stranded DNA genome that can undergo replication through host cell DNA polymerase. dsDNA viruses have a double-stranded DNA genome that can undergo replication through host cell DNA polymerase.

Which of the Following Types of Animal Virus Requires RNA-Dependent