Viruses
The lysogenic state is governed by the activity of the regulatory region of the lambda phage genomes; this region is termed as

operon repressor
immunity repressor
immunity operon
none of these

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Viruses
The function of a viral capsid is

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
protection against the viral genome from physical and enzymatic destruction

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