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The polymerase chain reaction is a method widely used to make millions to billions of copies of a specific DNA sample rapidly, allowing scientists to amplify a very small sample of DNA

Rapid antigen test is done for covid-19 In this test we can observe the formation of Band by observing the the bands form on the kit result is decided..... Rapid antigen test for COVID-19🦠😷 #science #lab #technician #laboratory #youtubeshorts #like #yshort