bhuvi

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Which of the following statements represents the most accurate description of a “virus receptor”?

A. Virus receptors are normal cell surface macromolecules that are exploited by viruses to initiate virion binding to the surface of susceptible cells
B. Virus receptors are specific cell surface macromolecules, encoded within those host genome, that are expressed solely to facilitate virus infection and priming of the immune system
C. All virus receptors are composed sialic acid
D. All virus receptors are expressed on all cell types, and clinical outcomes following infection with different viruses are a reflection of the ability of each virus to replicate in the intracellular environment
E. Virus receptors were originally encoded within viral genomes, and the presence of virus receptors in the human population today is an evolutionary record of historical contact between people and viruses in the past
 
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