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The genome of a virus is enclosed by a coat that is

  • A.virus-coded lipid
  • B.virus-coded protein
  • C.host-coded protein
  • D.host-derived lipid

Answer: B

Correct answer: virus-coded protein

The capsid is built from protein subunits encoded by the viral genome and made by the host’s ribosomes. That distinguishes it sharply from the envelope of an enveloped virus, which is host-derived lipid membrane carrying virus-coded glycoproteins - the lipid is the cell’s, the protein in it is the virus’s.

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