PCR (Polymerase Chain Reaction) is the quick and easy method of making unlimited copies of any fragment of DNA. Since it's first introduction ten years ago, PCR has very quickly become an essential tool for "improving human health and human life (TPCR)". Medical research and clinical medicine are profiting from PCR mainly in two areas: detection of infectious disease organisms, and detection of variations and mutations in genes, especially human genes. Because PCR can amplify unimaginably tiny amounts of DNA, even that from just one cell, "physicians and researchers can examine a single sperm or track down the elusive source of a puzzling infection" (TPCR)". These PCR- based analyses are proving to be just as reliable as previous methods-sometimes more so and often much faster and cheaper.
Polymerase chain reaction (PCR) is a technique used "to amplify the number of copies a specific region of DNA (Brown)", in order to produce enough DNA to be adequately tested. This technique......
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