Question

Why are viriods different from viruses

Answer 1

Viroids are free RNA molecules of low molecular weight without any protein coat while viruses can have either RNA or DNA molecules encapsulated in a protein coat. Viroids are smaller in size than viruses.

Answer 2

Viroids are different from viruses because viroids contains-
• free RNA ( without protein capsid)
• lower molecular weight than viruses
• smaller than viruses
• causes potato spindle tuber disease .