Q. Potato spindle tuber diseases is caused by a
A) Nematode
B) Virus
C) Bacterium
D) Viroid
Explanation
Viroids are small, circular, single-stranded RNA molecules that are the smallest known pathogens. A few well studied viroids include coconut cadang-cadang viroid, citrus exocortis viroid and potato spindle tuber viroid.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.