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Difference between virus and viroid is...

Difference between virus and viroid is

A

absence of protein coat in viroid, but present in virus

B

presence of low molecular weight RNA in virus, but absent in viroid,

C

Both (a) and (b)

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
A
Virus contains DNA or RNA as genetic material and a protein coat, whereas viroids have no protein coat, but only RNA as their nucleic acid. This is the reason why viroids are carried inside viruses e.g., hepatitis-D is a viroid that is carried in the capsid of heptitis-B virus.
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