• After infecting a host cell, a virion uses the cell s ribosomes, enzymes, ATP, and other components to replicate.
  • Some RNA viruses have their genome used directly as if it were mRNA.
  • Some RNA viruses carry enzymes which allow their RNA genome to act as a template for the host cell to a form viral mRNA.
  • Some DNA viruses use reverse transcriptase to replicate.
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