Polymerase chain reaction

Laboratory technique to multiply a DNA sample for study

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Polymerase chain reaction: Laboratory technique to multiply a DNA sample for study
Polymerase chain reaction (PCR) is a method widely used to rapidly make millions to billions of copies of a specific DNA sample, allowing scientists to take a very small sample of DNA and amplify it to a large enough amount to study in detail. PCR was invented in 1983 by the American biochemist Kary Mullis at Cetus Corporation. It is fundamental to many of the procedures used in genetic testing and research, including analysis of ancient samples of DNA and identification of infectious agents. Using PCR, copies of very small amounts of DNA sequences are exponentially amplified in a series of cycles of temperature changes. PCR is now a common and often indispensable technique used in medical laboratory research for a broad variety of applications including biomedical research and criminal forensics.

This golden retriever is beating PCR tests at detecting COVID in a French nursing home [Video]

This golden retriever is beating PCR tests at detecting COVID in a French nursing home

Pokaa the golden retriever is a quick study and is already delivering impressive results sniffing out coronavirus.

Credit: euronews (in English)     Duration: 01:31Published

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