Question

Which of the following statements regarding viruses are correct?
(i) These are cellular, infectious, nudeoprotien particles.
(ii) They can be grown in culture medium.
(iii) Genetic material is either $DNA$ or $RNA$, but never both.
(iv) They can be crystallised.

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (iii) and (iv)
• D. (i), (ii), (iii) and (iv)

Answer 1

Answer: (C)

Viruses are non-cellular, infectious, nudeoprotein entity that cannot be grown in culture medium as they lack their own machinery. Once, they infect a cell, they take over the machinery of the host cell to replicate themselves, killing the host.