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Mwk2W08 - Transposons Transposons are segments of DNA that...

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The first transposons were discovered in the 1940s by Barbara McClintock who worked with corn She found that they were responsible for a variety of types of gene mutations, usually * insertions * deletions and * translocations Transposons Transposons are segments of DNA that can move around to different positions in the genome of a single cell.
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It took about 40 years for other scientists to fully appreciate the significance of Barbara McClintock's discoveries. She was finally awarded a Nobel Prize in 1983. Crazy Barb and her Jumping Genes
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Class II Transposons Move by a "cut and paste" process: the transposon is cut out of its location and inserted into a new location . This process requires an enzyme — a transposase — that is encoded within the transposon. Transposase binds to: *both ends of the transposon, which consist of inverted repeats ; that is, identical sequences reading in opposite directions.
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