Some picornaviruses have depressions, called "canyons", on the surface of the virions.Which of the following describes the role that these depressions play?

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Quizplus · Accepted Answer

The depressions, or canyons, on the surface of picornaviruses are known as receptor binding sites. They allow the virus to bind to specific receptors on the surface of host cells, initiating the process of infection.

Some Picornaviruses Have Depressions, Called "Canyons", on the Surface of the Virions.Which