Tropism refers to the spectrum of tissues infected by a virus. Which parameter can influence viral tropism? Group of answer choices All answers are correct Cell receptors for viruses Presence of proteases that activate viral glycoproteins for fusion Cell proteins that regulate viral transcription Accessibility of susceptible and permissive cells

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What determines the host range of a virus? the proteins in the host's cytoplasm the enzymes carried by the virus whether its nucleic acid is DNA or RNA the proteins on its surface and that of the host

A Simple Targeting Model describes which mechanism of cellular transport targeting?     motor molecules targeted by changes in subdomain phosphatase and kinase concentrations     cargo proteins targeted by changes in subdomain phosphatase and kinase concentrations random     binding of cargo to cellular subdomains     random binding of motor molecules to specific subcellular regions