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[edit] Related[edit] BackgroundAutosomal DNA (atDNA)is derived from both parents. The amount contributed by each is not necessarily equal. Their contributions to a childs DN will be passed on to succeeding generations, and with each generation the amount passed on is approximately, but not exactly one-half from each successive parent. The amount of DNA passed on is measured in 'centimograns' or cM. This measure adjusts for differences in the length of each chromosome. Onany given chromosome the size of a centimoregan is constant, but varies considerably between chromosomes. With each succeeding generation the amount of atDNA passed on to a child on any given chromosome, from the ancestral parent, becomes increasingly divided.
*Assumes exactly half of the atDNA of each parent is passed on [edit] Data
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