%0 Journal Article %A R Bernstein %A B Dawson %A R Kohl %A T Jenkins %T X;15 translocation in a retarded girl: X inactivation pattern and attempt to localise the hexosaminidase A and other loci. %D 1979 %R 10.1136/jmg.16.4.254 %J Journal of Medical Genetics %P 254-262 %V 16 %N 4 %X Cytogenetic studies on a retarded girl showed a complex S;15 translocation, karyotype 45,X,-15,+t(X15). The translocation X chromosome was non-randomly partially inactivated, the inactivation being mainly confined to the X segment and in some cells only to the X long arm. Gene marker studies failed to show anomalous segregation of the hexosaminidase A gene or any other gene markers tested. %U https://jmg.bmj.com/content/jmedgenet/16/4/254.full.pdf