Dictionary of Human Evolution and Biology

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Linkage Group

Set of genes clustered together on a chromatid such that they are seldom rearranged by recombination, i.e. a set of loci whose pairwise recombination fraction is less than one-half. Each linkage group corresponds to a specific chromatid or chromosome; humans thus have 25 linkage groups in the genome, including the mitochondrial chromosome.

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