Dictionary of Human Evolution and Biology

  • -id > 9:3
   

Barr Body

Sex chromatin; darkly staining, inactivated X chromosome in a squamous epithelial cell. Technically, this heteropycnotic mass is an inactivated chromatid, not a chromosome.

See X inactivation.

Full-Text Search Entries

Suggestions from Other Sources

From "Dictionary of Nursing and Individual Health Care"