Question

In 1971 T. O. Diener discovered a new infectious agent that was smaller than viruses –

I. It causes potato spindle tuber disease

II. It is free RNA

III. Molecular wt. of RNA is low

The above statements are assigned to

• A. Viruses
• B. Viroids
• C. Virulent
• D. Mycoplasma

Answer 1

Answer: (B)

Viroids