title: Ring heterosome in a two-and-a-half year old girl (46, XXr or 46, XYr).
mesh_terms: D000017:ABO Blood-Group System; D002675:Child, Preschool; D002843:Chromatin / Q000032:analysis; D002875:Chromosomes / Q000032:analysis / Q000378:metabolism; D004261:DNA Replication; D003878:Dermatoglyphics; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics; D007621:Karyotyping; D008297:Male; D009061:Mouth Mucosa / Q000166:cytology / Q000378:metabolism; D010375:Pedigree; D012729:Sex Chromosome Aberrations / Q000235:genetics*; D012730:Sex Chromosomes; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D000017:ABO Blood-Group System; D002843:Chromatin; D014316:Tritium; D013936:Thymidine