Which one of the following statements about viruses is correct?

Viruses possess their own metabolic system

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All viruses contain both RNA and DNA

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Viruses are obligate parasites

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Nucleic acid of viruses is known as capsid

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Solution

The correct option is C Viruses are obligate parasites
All viruses are obligate parasites. 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. Most viruses have either RNA or DNA as their genetic material. Capsid is the protein covering the genetic material.

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Similar questions

Which of the following statement(s) is/are true about viruses?

i. Viruses are smaller than the bacteria

ii. Viruses are active outside the host cell

iii. Viruses use the host cell to reproduce

iv. Viruses do not contain DNA or RNA

Which of the following statement(s) is/are true about viruses?

i. Viruses are smallest among the microorganisms.

ii. Viruses can live freely.

iii. Viruses use the host cell to reproduce.

iv. Viruses do not have DNA or RNA.

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