You have isolated a newly discovered virus and are attempting to characterize it.You begin with its genome.You first isolate the virion-producing mRNA from culture cells infected with the virus.When you compare these mRNA with the viral genome,you find that they are complementary.What does this tell you?
A)This virus has a positive-sense genome.
B)This virus has a negative-sense genome.
C)This virus has an ambisense genome.
D)The data are inconclusive.

Question

Quizplus · Accepted Answer

The fact that the mRNA is complementary to the viral genome suggests that this virus has a negative-sense genome. This means that the viral RNA must be transcribed into a positive-sense RNA by an RNA polymerase before it can be translated into protein.

You Have Isolated a Newly Discovered Virus and Are Attempting