A complete, mature and infectious particle of virus is called
A
Viroid
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B
Virion
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C
Virusoid
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D
Prion
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Solution
The correct option is B Virion Viruses are a small obligate intracellular parasite, contains either RNA or DNA surrounded by virus protein coat. A complete virus particle is called as Virion. The main function of the virion is to deliver its DNA or RNA genome into the host cell so that the genome can be expressed in the host cell.