Viroids differ from viruses in having;

1. DNA molecules without protein coat
2. RNA molecules with protein coat
3. RNA molecules without protein coat
4. DNA molecules with protein coat 
Subtopic:  Virus, Viroids & Prions |
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Which of the following statements is wrong for viroids?
1. They are smaller than viruses
2. They cause infections
3. Their RNA is of high molecular weight
4. They lack a protein coat

Subtopic:  Virus, Viroids & Prions |
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