Which of the following is correct about viroids?

They have DNA with protein coat

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They have free DNA without protein coat

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They have RNA with protein coat

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They have free RNA without protein coat

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Solution

The correct option is D They have free RNA without protein coat
Viroids are infectious agents that are smaller than viruses. They have free RNA without protein coat and are found in viruses. Potato spindle tuber disease is a disease caused by viroid.

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