Q.
Read the following statements.
(A) No virus contains both $DNA$ and $RNA$
(B) A virus is a nucleoprotein and the genetic material is infectious
(C) Viruses that infect animals can have single stranded $RNA$
(D) In general, viruses that infect plants have either single or double stranded $RNA$ or double stranded $DNA$
(e) Bacteriophages usually have $ds\, DNA $
How many statements are not correct?
Biological Classification
Solution: