What is a possible reason that sleeping beauty wasnt

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Unformatted text preview: uestion 3b • Ds was able to transpose nonautonomously, using transposase from Ac elements. What is a possible reason that Sleeping Beauty wasn’t able to do this? • ANSWER: The inverted repeats were also mutated. The Structure of TEs: Families of TEs in eukaryotes • 2 groups of TEs are found in eukaryotes: • DNA transposons • Ac and Ds elements in maize • Sleeping Beauty in fish • P elements in Drosophila (the fruit fly) • Retrotransposons. • Ty element in yeast • The copia elements in fruit fly • The Alu sequence in humans Encode enzymes related to enzymes in retroviruses, such as HIV CARRY OWN REVERSE TRANSCRIPTASE; INFECT BY RNA INTER The Structure of TEs: Families of TEs in eukaryotes • • P elements are found in fruit flies DNA TRANSPOSON Have terminal inverted repeats and generate flanking direct repeats at the insertion site. • Encode both a transposase and a repressor of transposition. • Why is this useful? The Structure of TEs: Families of TEs in eukaryotes • Why is this useful? • Host DNA could be harmed if the...
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This document was uploaded on 02/25/2014.

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