Techniques
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Restriction endonucleases
Animation on restriction endonucleases.
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Restriction enzyme digestion of DNA
Interactive tutorial including lots of detail on gel electrophoresis.
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Spotlight on Restriction Enzymes
In depth article on Restriction Enzymes from Nature site, good background reading.
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Steps in cloning a gene
Animation on in vivo gene cloning followed by short multi choice quiz.
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The PCR song
Youtube video – song about PCR.
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The Polymerase Chain Reaction PCR
Animation on PCR.