Question

Which is wrong for viroids

• A. RNA is of high molecular weight
• B. They lack a protein coat
• C. They are smaller than viruses
• D. They cause infections

Answer 1

The correct option is A RNA is of high molecular weight

Viroids are the smallest infectious pathogens. They are composed of a short strand of circular, single-stranded RNA without a protein coat, existing as highly base-paired, rod-like structures, making its molecular weight higher. They are able to replicate autonomously and are known to cause diseases in higher plants.

So, the correct answer is option A.