Q. T O Diener discovered a

A) Free infectious RNA
B) Free infectious DNA
C) Infectious protein
D) Bacteriophage
Explanation

Viroids were discovered by T O Diener, a plant pathologist in 1971. Viroids are small, circular, single-stranded RNA molecules that are the smallest pathogens.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.