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Parental origin of chromosomal nondisjunction in a 49,XXXXY male using recombinant-DNA techniques
M Villamar1, J Benitez, E Fernández
1Departamento de Genética, Fundación Jiménez Diaz, Madrid, Spain.
Clinical Genetics
|September 1, 1989
Abstract:
We have analyzed the origin, in a patient with 49,XXXXY, of the four X-chromosomes by means of recombinant DNA techniques. We found a maternal origin of the four X-chromosomes due to non-disjunctions in the first and second meiotic divisions.