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Unformatted text preview: nonfunctional. Bacterial cells protect their own DNA from digestion by methylation the DNA at the sequence recognized by their own restriction enzyme. How is this all analyzed? o Restriction enzymes have been isolated from a wide variety of bacteria. Each enzyme has a unique recognition site. o By selecting enzymes which cut at site which includes a DNA mutation allow scientists to detect the presence of a DNA polymorphism. o An example of this is gel electrophoresis, but only works in a small genome....
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- Fall '08