Question

All viruses
(A) Contain protein
(B) Contain DNA
(C) Are susceptible to antibiotics
(D) Are intracellular

• A. (a) & (d)
• B. (b) & (c)
• C. (a) & (b)
• D. (b) & (d)

Answer 1

The correct option is A (a) & (d)

A virus is an infectious agent that typically consists of the nucleic acid molecule in a protein coat. Nucleic acid could be either DNA or RNA.

In our environment, virus exists in two states - extracellular and intracellular.

Extracellular before it invades the host cell and once the virus invades a host cell, it is in an intracellular state.

Antibiotics can't kill viruses because viruses have a different structure and replicate in a different way.

Antibiotics work by targeting the growth machinery in bacteria (Not viruses).

So, the correct option is '(a) & (d)'.