Differences between virus and viroids is/are

Easy

A

Absence of protein coat in viroid but presence of protein coat in virus
B

Presence of low molecular weight RNA in virus but presence of high molecular weight DNA in viroid
C

Potato spindle tuber diseases caused by viruses, but measles caused by viroids.
D

Genetic material only RNA in viruses but can be RNA, DNA in viroids.

Solution

The protein coat of viruses is called capsid. The protein coat is absent in viroid. Viroid also contains low molecular weight RNA. Viroids causes disease like potato spindle tube disease in plants. The genetic material of viruses can be made of DNA or RNA.

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