#polymerase  an enzyme that catalyzes the formation of DNA and RNA from an existing strand of DNA or RNA
  supertype:  #enzyme  any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
  subtype:  #transcriptase  a polymerase associated with the process of transcription
  subtype:  #reverse_transcriptase__reversetranscriptase  a polymerase that catalyzes the formation of DNA using RNA as a template; found especially in retroviruses

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