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Taq polymerase is an enzyme that is used by scientists in the polymerase chain reaction because it is stable at high temperatures. It is the polymerase used by a bacteria, Thermus auquatics, which... Taq polymerase is an enzyme that is used by scientists in the polymerase chain reaction because it is stable at high temperatures. Large amounts of a sample of DNA are necessary for molecular and genetic analyses, and the polymerase chain reaction is used to amplify very small amounts of DNA.
From Wikipedia, the free encyclopedia. DNA primase, also called as DNA primerase, is an enzyme involved in the replication of DNA. DNA primase is a type of RNA polymerase which creates an RNA primer (later this RNA piece is removed by a 5' to 3' exonuclease); next, DNA polymerase uses the RNA primer to replicate ssDNA.rimase is activated by DNA helicase where it then synthesizes a short RNA primer approximately 11 Â±1 nucleotides long, to which new nucleotides can be added by DNA polymerase. The RNA segments are first synthesized by primase and then elongated by DNA polymerase.