Question

Which of the following statements are true about the viruses?

• A. They are free-living.
• B. They are obligate parasites.
• C. Both (a) and (b)
• D. They are Prokaryotic

Answer 1

The correct option is B They are obligate parasites.

All viruses are obligate parasites; that is, they lack metabolic machinery of their own to generate energy or to synthesize proteins, so they depend on host cells to carry out these vital functions. If an obligate parasite cannot obtain a host it will fail to reproduce.