Kary Mullis's 1983 PCR invention amplifies DNA a billion-fold in under two hours, transforming forensics and diagnostics. This technique, used in 95% of molecular biology labs, is 10 times faster than the average alternative cloning method, far exceeding #2 Discovery of the Periodic Table in immediate practical application. PCR enabled COVID-19 tests to process 1 million samples daily, a concrete data point showcasing its revolutionary speed and scalability.
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