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Sex Chromatin

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Definition: In the interphase nucleus, a condensed mass of chromatin representing an inactivated X chromosome. Each X CHROMOSOME, in excess of one, forms sex chromatin (Barr body) in the mammalian nucleus. (from King & Stansfield, A Dictionary of Genetics, 4th ed)  A 11 qualif except /cytol; /genet /isol permitted   
See Also Sex Determination Analysis
Other names Chromatin, Sex; Barr Bodies; Sex Chromatins; Chromatins, Sex; Bodies, Barr

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012

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