X-autosome translocation in normal mother and effectively 21-monosomic daughter.
D000015:Abnormalities, Multiple / Q000209:etiology; D000328:Adult; D001345:Autoradiography; D002869:Chromosome Aberrations / Q000235:genetics*; D025063:Chromosome Disorders; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000209:etiology; D007621:Karyotyping; D010641:Phenotype; D012729:Sex Chromosome Aberrations / Q000235:genetics*; D012730:Sex Chromosomes