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Question

Viruses that infect plants generally have

A
ssDNA
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B
ssRNA
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C
dsDNA
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D
ssRNA or dsDNA
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Solution

The correct option is B ssRNA
Body of a virus is composed chiefly of a protein coat and a core that contains the genetic material. Viruses contain either RNA or DNA as the genetic material and never both. In general, viruses that infect plants have single stranded RNA (ssRNA) while those that infect animals may have either single or double stranded RNA (ssRNA or dsRNA) or double stranded DNA (dsDNA).

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