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The PCR Method - a DNA Copying Machine

How does forensic science enable DNA to be extracted from tiny samples on a cigarette butt? The challenge in this game is to use the basic principles of the PCR method to copy the DNA in order to collect enough material to use as evidence.
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About the game

PCR is a method by which a few fragments of DNA can be duplicated into millions in a couple of hours. This makes PCR a very useful method in, amongst other fields, forensic science.
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The Nobel Prize

The 1993 Nobel Prize in Chemistry was awarded for the invention of PCR, a method that made it possible to copy a large numbers of DNA fragments in only a few hours.
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To cite this page
MLA style: "The PCR Method - a DNA Copying Machine". Nobel Media AB 2014. Web. 20 Sep 2020. <>

About the educational games

The educational games are based on Nobel Prize awarded discoveries and were produced between 2001 and 2012. The games have not been updated since production (including potential scientific facts changes) and are provided here on an 'as is' basis by popular demand.

The games require Adobe Flash Player. Adobe Flash is an old technology with an end of life by 2020 and these games will then no longer work. Flash is disabled in many browsers and need to be activated in order to play the games.