Q. Viroids have
A) ssRNA not enclosed by protein coat
B) ssDNA not enclosed by protein coat
C) dsDNA enclosed by protein coat
D) dsRNA enclosed by protein coat
Explanation
Viroids are small, single stranded, circular RNA molecules not enclosed by protein coat. They were discovered by T O Diener in 1971. Viroid replication requires host encoded RNA polymerase.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.