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Sites of formation of constitutional neocentromeres within the human genome. A total of 60 cases, originating from 16 different human chromosomes, have been described. The mapped positions of each of the neocentromere cases are indicated by bars to the right of the chromosome ideograms. Longer bars indicate neocentromere sites that have not been precisely localized. Hatch marks on chromosomes 1, 9, and Y represent blocks of constitutive heterochromatin. Adapted from Choo (2001a).
