Viruses
Which of the following viruses belong to family Hepadnaviridae?

Hepatitis B virus
Hepatitis A virus
Hepatitis D virus
All of these

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Viruses
The sequence of nucleic acid in a variety of viruses and viral host, will find more similarities

between viruses and their hosts than among different viruses
among different viral hosts than among different viruses
among different viral hosts than between viruses and their hosts
among different viruses than between viruses and their hosts

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Viruses
The function of a viral capsid is

protection against the viral genome from physical and enzymatic destruction
serving as a vehicle of transmission from one host to another
providing binding sites that enable the virus to attach to specific receptor sites on the host cell
All of these

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