Viruses
Which of the following viruses has not been associated with human cancer?

Hepatitis C virus
Varicella-Zoster virus
Hepatitis B virus
Herpes simplex virus type 2

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Viruses
The function of a viral capsid is

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

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