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I'm seeing a lot of chat about PCR and COVID, some of it quite bonkers. So here’s a PCR 101.

DNA is very small and therefore not easy to detect. PCR is a tool for multiplying specific bits of DNA from a few to billions, thus making it easy to detect. 1/n

— Dr Adam Rutherford (@AdamRutherford) November 15, 2020

via Twitter https://twitter.com/AdamRutherford

November 15, 2020 at 02:41PM