Viruses
Which of the following is an example of rod-shaped viruses having their capsomeres arranged helically and not in the stacked ring?

Bateriophage M13
Bateriophage MV-L2
Bateriophage T4
Bateriophage T2

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Viruses
The function of a viral capsid is

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

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