1.

Which ONE of the following statements is TRUE about viruses ?  (A)All viruses possess a protein coat around its genetic material at all stages of their life cycle  (B) All viruses contain RNA as genetic material  (C) All viruses contain DNA as genetic material  (D) All viruses replicate only within the host cell 

Answer»

Correct option (D) All viruses replicate only within the host cell

Explanation:

Virus is non-autonomous outside a living host body, as the polymerase genes expressed early in the cycle of virus but capsid & tail proteins are expressed later. Virus either have DNA or RNA.


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