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  1. Polymerase chain reaction - Wikipedia

    PCR is fundamental to many of the procedures used in genetic testing, research, including analysis of ancient samples of DNA and identification of infectious agents. Using PCR, copies …

  2. Polymerase chain reaction (PCR) | Definition, Steps ...

    Dec 11, 2025 · The polymerase chain reaction (PCR) is used to make numerous copies of a specific segment of DNA quickly and accurately, enabling experiments in molecular biology, …

  3. Polymerase Chain Reaction (PCR) Fact Sheet

    Aug 17, 2020 · Polymerase chain reaction (PCR) is a technique used to "amplify" small segments of DNA.

  4. PCR Test: What It Is, How It Works & Results - Cleveland Clinic

    Jan 16, 2025 · A PCR (polymerase chain reaction) test is a lab technique that amplifies (creates more copies) of genetic material (DNA). Healthcare providers can use PCR to test for …

  5. PCR Tests: MedlinePlus Medical Test

    PCR (polymerase chain reaction) tests are a reliable and accurate way to diagnose certain infectious diseases, some types of cancer, and certain genetic changes. The tests check for …

  6. All About PCR - Beta - University of Utah

    When things are working well, PCR can amplify a single copy of the target sequence—as in, DNA from one cell. But it’s easy to get many more than one copy to start with, and with more target …

  7. Polymerase Chain Reaction (PCR): Steps in This DNA Test

    PCR (polymerase chain reaction) is a method to analyze a short sequence of DNA (or RNA) even in samples containing only minute quantities of DNA or RNA. PCR is used to reproduce …