Which one of the following statements about viruses is true?

Biology Biological Classification Kingdom–Protista Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

Viruses are the most primitive life-forms

Viruses are certainly primitive life-forms, but not the most primitive

All viruses have DNA cores, although the DNA can be single-stranded or double-stranded.

Viruses have a nucleic acid-based genome enclosed in a protein coat

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Viruses are unique biological entities consisting of a nucleic acid (either DNA or RNA) that serves as their genetic material, which is protected by a protein shell known as a capsid. This is their defining structural characteristic. They lack cellular structures like membranes, cytoplasm, or organelles and require a host cell's machinery to replicate.

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