MINNEAPOLIS / ST. PAUL (April 1, 2002)-- For the first time, a special segment of DNA called a transposon and an enzyme known as the Sleeping Beauty transposase have been used to genetically modify a vertebrate animal. In the study, which is published in the April 2 issue of the Proceedings of the National Academy of Sciences, University of Minnesota researchers injected a transposon containing the gene for a yellow coat color into a mouse embryo, resulting in a genetically modified mouse.
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