“Barr body”的英文意思_释义_用法

单词

Barr body

释义

Barr body, n. Genetics and Med.|ˈbɑː ˌbɒdɪ|
[Named after M. L. Barr (b. 1908), Canadian anatomist, who first reported this with E. G. Bertram in Nature (1949) 30 Apr. 676–7.]
A strongly heterochromatic body just inside the membrane of non-dividing cell nuclei in females, representing a condensed, inactive X chromosome and normally diagnostic of genetic femaleness.
1961Amer. Jrnl. Med. XXXI. 434/2 Anders and Prader studied a mentally retarded boy..whose buccal smear nuclei contained double and triple Barr bodies.1977Hongkong Standard 14 Apr. 11/4 She said she is angry because she passed the Barr body test just two weeks ago..and had forwarded the findings to the European tournament committees.1983J. R. S. Fincham Genetics xix. 570 The nuclei of XXX females have two inactivated X-chromosomes (seen as ‘Barr bodies’) instead of the normal one.

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