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DNA Insertion Elements
Definition 1
A short DNA sequence found in prokaryotic and some eukaryotic genomes that encodes proteins involved in DNA transposition and is usually flanked by inverted repeats. (NCI Thesaurus)
Definition 2
Discrete segments of DNA which can excise and reintegrate to another site in the genome. Most are inactive, i.e., have not been found to exist outside the integrated state. DNA transposable elements include bacterial IS (insertion sequence) elements, Tn elements, the maize controlling elements Ac and Ds, Drosophila P, gypsy, and pogo elements, the human Tigger elements and the Tc and mariner elements which are found throughout the animal kingdom. (NLM, Medical Subject Headings)
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