Anatomy

Sex Chromatin

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)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

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)

MeSH Record

Classification

Broader headings

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MeSH Record

See Also

MeSH Record

Synonyms

5 entry terms
  • Barr Bodies
  • Chromatin, Sex
  • Bodies, Barr
  • Chromatins, Sex
  • Sex Chromatins

MeSH Record

Aspects Covered

16 allowable subheadings

Indexed with the subheadings chemistry, classification, drug effects, enzymology, genetics, immunology, isolation & purification, metabolism, microbiology, parasitology, pathology, physiology, radiation effects, transplantation, ultrastructure, virology.

MeSH Hierarchy

Tree Numbers

  1. A11w.284w.187w.865w.800
  2. A11w.284w.430w.106w.279.345.190w.160.180w.383w.800
  3. G05.360w.160.180w.383w.800
  4. G05.360w.162w.865w.800

MeSH Record

NLM Classification

QU 470

AMA Style

References

  1. National Library of Medicine. Sex Chromatin. Medical Subject Headings (MeSH). 2026. Unique ID D012728. http://id.nlm.nih.gov/mesh/2026/D012728
  2. Sex Chromatin. In: Wikidata. https://www.wikidata.org/wiki/Q21097476