Which of the following statements is wrong for viroids?
They lack a protein coat
They are smaller than viruses
They cause infections
Their RNA is of high molecular weight
The correct option is D Their RNA is of high molecular weight Viroids are infectious, nonprotein‐coding, highly structured small circular low-molecular-weight ribonucleic acids (RNAs) able to replicate autonomously and induce diseases in higher plants.
Viroids are single-stranded covalently closed circular RNA molecules existing as highly base-paired rod-like structures.