Dictionary  Barr' bod"yPronunciation: (bär), [key] a condensed, inactivated X chromosome present in most female mammals in the nuclei of all cells except the germ cells: used, as in sports competitions, to verify that an individual is genetically female. Also called sex chromatin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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