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AVprozaik [17]
3 years ago
8

Dr. Wagner is investigating a newly discovered, disease causing agent. She

Biology
1 answer:
VMariaS [17]3 years ago
6 0
Double-stranded RNA viruses (dsRNA viruses) are a polyphyletic group of viruses that have double-stranded genomes made of ribonucleic acid. ... The two groups do not share a common dsRNA virus ancestor. Double-stranded RNA viruses evolved two separate times from positive-strand RNA viruses. So therefore your answer is A
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