(băr)
[Pronunciation]
[Murray L. Barr, Canadian anatomist, b. 1908]
Sex chromatin mass seen within the nuclei of normal female somatic cells.
According to the Lyon hypothesis, one of the two X chromosomes in each somatic cell of the female is genetically inactivated. The Barr body represents the inactivated X chromosome.
Barr body is a sample definition found in
Taber's Medical Dictionary, 21st Edition.
To find other Taber's Medical Dictionary topics
please login
or
purchase a subscription.
![[Top]](images/m/top.gif)
