NEET 2003 Biology question

Which one of the following statements about viruses is correct : -

(1)Viruses possess their own metabolic system
(2)All viruses contain both RNA and DNA
(3)Viruses are obligate parasitesCorrect
(4)Nucleic acid of viruses is known as capsid

Answer: (3)

Solution

Viruses lack cellular machinery and metabolic enzymes of their own and can multiply only inside a living host cell, so they are obligate (intracellular) parasites - option

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Question ID VK-089326