'''Polymerase chain reaction''' or PCR refers to a method of heat cycling to amplify [[DNA]]. It was made possible by the discovery of a thermophilic (heat loving) bacterium: ''thermus aquaticus''. The DNA polymerase from this bacterium made DNA replication at high temperatures (60-70 degrees Celsius) possible.
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'''Polymerase chain reaction''', or PCR, refers to a method of heat cycling to amplify [[DNA]]. It was made possible by the discovery of a thermophilic (heat loving) bacterium: ''thermus aquaticus''. The DNA polymerase from this bacterium made DNA replication at high temperatures (60-70 degrees Celsius) possible.