Which of the following statements in wrong for viroids?

They lack a protein coat

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They are smaller than viruses

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They cause infections

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Their RNA is of high molecular weight

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Solution

The correct option is D Their RNA is of high molecular weight
Viroids are pathogens that are smaller than viruses. It is a free RNA with a low molecular weight. It lacked the protein coat which is present in viruses and hence was termed viroid.

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