RNA polymerase - Definition

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RNA polymerase is an enzyme that allows the synthesis, without modification, of RNA molecules, a copy of DNA. Human beings possess three types of RNA polymerases, which transmit and duplicate genetic information, allow protein formation, and the separation of DNA strands. The RNA polymerase is larger than other RNAs. Numerous viruses, such as baculoviruses and mimiviruses, contain the RNA polymerase.