Evolution: are themonkeys’ typewriters rigged?
R. Garvin, Michael
J. Gharrett, Anthony
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Evolution is presumed to proceed by random mutations, which increase an individual’s fitness. Increased fitness produces a higher survival rate for those individuals within populations and drives the variants to fixation over large timescales to produce new species. We recently identified positively selected sites in mitochondrial complex I in numerous, diverse taxa. In one taxon, a simple sequence repeat (SSR) encompassed the positively selected sites.
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