Which of the following feature is not related to viruses?

Infectivity and host specificity

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Presence of genetic material

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Occurrence of certain enzymes

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Oxygen requirement

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Solution

The correct option is D Oxygen requirement
Viruses are intracellular obligate parasites. They have an acellular structure consisting of a protein coat and a genetic material which could be either DNA or RNA but never both. They might also have certain enzymes such reverse transcriptase in case of RNA viruses.
Viruses are infectious particle and exhibit host specificity.
Viruses do not need oxygen as they are acellular entities.

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