Transposable elements, transposons, retroposons

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Department
Soil + Crop Sciences
Course
SOCR 330
Professor
Sarah Ward
Semester
Fall

Description
11 November Transposable Elements Barbara McClintock (1902 – 1992) first proposed existence of transposons (“jumping genes”) in corn in 1940s Awarded Nobel prize in 1983 Effect of Transposable Elements in Corn Movement of transposon in and out of pigment gene c on chromosome 9 during kernel development causes spotting Ds element is transposable Ac element does not move Ds and Ac identical 4.5 kb sequences except Ds lacks transposase gene Transposase recognizes repeat sequences flanking Ds and cuts it out of DNA Transposons Also known as transposable or mobile genetic elements Present in prokaryotes and eukaryotes 5% of fruit fly genome transp
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