Transposon
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Transposoner er dna-elementer, der findes i forskellige varianter hos alle levende organismer. De opfattes ofte som snyltere i værtsorganismens genom, eftersom de ikke umiddelbart synes at have en opgave, der gavner værten. Transposoner kaldes også "hoppende gener" eller "mobile genetiske elementer".
Måske har transposoner en vigtig evolutionær funktion. Dette beskrives i denne artikel. [1]
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- ↑ April 24, 2007, Sciencedaily: 'Junk' DNA Now Looks Like Powerful Regulator, Scientists Find Citat: "...Many of those snippets were located in gene-free chromosomal expanses once described by geneticists as "gene deserts." These sections are, in fact, so clogged with useful DNA bits - including the ones Bejerano and his colleagues describe - that they've been renamed "regulatory jungles."...transposons that duplicate themselves and hop around the genome. "We used to think they were mostly messing things up. Here is a case where they are actually useful," Bejerano said..."Now we've shown that transposons may be a major vehicle for evolutionary novelty," he said...."

