DNA Extraction - The cells membranes, structural materials, proteins and enzymes are destroyed by a high temperature alkaline solution. So DNA is released and safely separated from the rest of the cell components., DNA Digestion - Cutting restriction enzymes are added to the extracted DNA, to digest the DNA into hundreds of small fragments., DNA Separation - DNA pieces are separated to be analysed and measured. Done using Gel Electrophoresis a technique used to separate large molecules, for instances proteins or nucleic acids based on their size and charge., DNA Visualisation - An enhancement technique is used to see the DNA band., DNA Analysis - To measure DNA fragments a standard marker is run alongside the DNA samples on the electrophoresis gel. The sample taken from the scene is separated next to the sample taken from a suspect, in order to directly compare the 2 DNA patterns produced.,

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