Question

Difference between virus and viroid is ________.

• A. Absence of protein coat in viroid but present in virus
• B. Presence of low molecular weight RNA in virus but absent in viroid
• C. Both (a) and (b)
• D. None of these

Answer 1

The correct option is A Absence of protein coat in viroid but present in virus

• A virus is made up of nucleic acid (DNA or RNA) and a protein coat that is encapsulating the whole nucleic acid.
• A viroid is made up of a short strand of circular, single-stranded RNA that has no protein coating.

So, the correct answer is (A).