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Microbes in Human Welfare — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYMicrobes in Human Welfare3 Marks
Question
How are viroids different from viruses?
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Answer

Differences between Viroids and Viruses :
S.No.VirusesViroids
1They are smaller than bacteria.They are smaller than viruses.
2They may have genetic substance RNA or DNA.While they have only RNA.
3They have a protein coating.They don't have protein coating.
4These cause the following diseas : AIDS, small pox etc.While they cause a disease called potato spindle tuber.

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