Question
Biology Question on viruses and subviral particles
T.O. Diener discovered a
A
Bacteriophage
B
Infectious protein
C
Free infectious DNA
D
Free infectious RNA
Answer
Free infectious RNA
Explanation
Solution
1971 T.O.Diener discovered viroids which are infectious agents. They consist of very low molecular weight RNA without any protein coat. These are smaller than viruses that cause potato spindle tuber disease chrysanthemum stunt etc.