Which of the following is the characteristic feature of a virus?

Correct option is B

The correct answer is (b) Virus multiplies only on hosts.
· Viruses are obligate intracellular parasites, meaning they cannot multiply or reproduce outside a living host cell.
· They depend entirely on the host's cellular machinery for replication, whether it’s a plant, animal, or bacterial cell.
· A virus contains genetic material (DNA or RNA) enclosed in a protein coat, and it requires a host cell to reproduce by hijacking the host's biological processes.
· Viruses do not have metabolic activity outside a host, which makes them inactive when outside a host.
Additional Knowledge:
· Virus comprises of fat and carcinogen - Viruses are made up of a protein coat and genetic material, not fat or carcinogens.
· Virus breeds fast on dead animals only - Viruses multiply only within living host cells, not specifically on dead animals.
· Virus does not need any medium to grow - Viruses cannot grow or replicate on their own; they require a living host cell to reproduce.