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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 cultured cells infected with the virus. When you compare this mRNA to 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 virus does not use DNA or RNA.