Which among the following microbes do not contain any nucleic acids like DNA/RNA?

Bacteriophage

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Viroids

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Virusoid

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Prions

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Solution

The correct option is D Prions
Prions are proteinaceous infectious particles that can cause abnormal folding of specific normal cellular proteins leading to disease. Because of their acellular structure and being made-up of only of protein without DNA or RNA, they are extremely resistant to chemicals, heat and radiation.

The rest three - bacteriophages, viroid and virusoids - contain some form of DNA or RNA but prions do not contain any sort of nucleic acids.

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