A case of female hemophilia with a 46,XXr karyotype studied with X-chromosome DNA probes.

Abstract	A case of female hemophilia with a 46,XXr/45,X karyotype and signs of Turner syndrome, has been followed for the past 10 years. One of her brothers also has hemophilia A. A study with polymorphic DNA probes located in the Xq27-qter region has enabled us to demonstrate that the ring chromosome is of paternal origin and that the factor VIII gene region is deleted. The hemizygous state allowed expression of the hemophilia A mutation, present on the morphologically normal X chromosome, inherited from her carrier mother.
Authors	S Gilgenkrantz, M E Briquel, J L Mandel, I Oberle
Journal	Human genetics (Hum Genet) Vol. 72 Issue 2 Pg. 157-9 (Feb 1986) ISSN: 0340-6717 [Print] Germany
PMID	3455922 (Publication Type: Case Reports, Journal Article)
Chemical References	Genetic Markers DNA
Topics	Adolescent Chromosome Aberrations Chromosome Banding DNA (genetics) Female Genetic Markers Hemophilia A (complications, genetics) Humans Mosaicism Pedigree Polymorphism, Genetic Ring Chromosomes Turner Syndrome (complications, genetics) X Chromosome

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