'Viroids' differ from 'viruses' in being

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(A) . Viruses consist of a genetic material ($DNA$ or $RNA$) enclosed within a protein coat called a capsid.$B$. Viroids,discovered by $T.O. Diener$ i

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Naked $RNA$ molecules only

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(A) . Viruses consist of a genetic material ($DNA$ or $RNA$) enclosed within a protein coat called a capsid.$B$. Viroids,discovered by $T.O. Diener$ in $1971$,are infectious agents that consist solely of a short strand of circular,single-stranded $RNA$ without any protein coat.$C$. Therefore,viroids differ from viruses because they are naked $RNA$ molecules lacking the protein capsid found in viruses.

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