Question

Plant viruses mostly have

• A. DNA
• B. RNA
• C. Both DNA and RNA
• D. Coiled nucleolus

Answer 1

The correct option is B RNA

The genomes of nearly all plant viruses are made of RNA. Most of these genomes are composed of positive sense ssRNA that is the same polarity as the messenger RNAs of the host cell. This causes the easy entry of the ss RNA into the host genome and immediate production of virions. Some of the RNA viruses have a negative sense ss RNA and some other virus also have dsRNA.

So, the correct answer is 'RNA'.