PARASITIC GENES. “There are Over 2 Million Copy Machines in your Genes, but only 80-100 still work (they are all LINE-1s). These TE “copy machines” drove evolution for 150 million years, but have largely become non-functional in humans. However, those that are working can still copy themselves (LINE-1s) or copy other transposable elements that were never able to copy themselves (i.e. were parasitic transposable elements). The Alu and SVA transposable elements are the “parasitic TEs”.
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