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CHROMATIN-POSITIVE [1 record]

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Record 1 1985-11-01

English

Subject field(s)
  • Genetics
DEF

Having sex chromatin (Barr body in the nuclei of autosomal cells; a characteristic of the normal female. (DORL)

CONT

(Chromosome mutation) Evidence is available from colour vision studies that either maternal or paternal X chromosome can be lost in chromatin-negative Turner's syndrome and that maternal nondisjunction can account for chromatin-positive Klinefelter's syndrome (GENCYT p. 211)

French

Domaine(s)
  • Génétique
DEF

Qui possède de la chromatine sexuelle (corpuscule de Barr) dans les noyaux des cellules autosomiques; caractéristique des femmes normales.

CONT

(Dysgénésies testiculaires) L'autre concerne 4 frères, un trisomique 21, 2 jumeaux de sexe masculin, dont un mort-né, un garçon avec syndrome de Klinefelter chromatine positive (5 cellules XY; 5 cellules XXY).

Spanish

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