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Created page with "== Introduction == Polymerase chain reaction (PCR) is a widely used method in molecular biology to make multiple copies of a specific DNA sequence. It is an indispensable tool in modern genetic analysis, allowing researchers to amplify, or make many copies of, small segments of DNA for study. Image:Detail-39669.jpg|thumb|center|A polymerase chain reaction machine, also known as a thermocycl..."
