16. Transposable Elements

In Barbara McClintock's study of corn, which of the following kernel phenotypes did she find was due to transposable elements?

A non-autonomous element is a chromosomal element that can what?

Describe the difference between DNA transposons and retrotransposons.

In enhancer trapping experiments, a minimal promoter and a reporter gene are placed adjacent to the end of a transposon so that genomic enhancers adjacent to the insertion site can act to drive expression of the reporter gene. In a modification of this approach, a series of enhancers and a promoter can be placed at the end of a transposon so that transcription is activated from the transposon into adjacent genomic DNA. What types of mutations do you expect to be induced by such a transposon in a mutagenesis experiment?

How are flanking direct repeat sequences created by transposition?