Acrocentric associations in mongol populations.
D002455:Cell Division; D002466:Cell Nucleolus; D002478:Cells, Cultured; D002875:Chromosomes; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000235:genetics*; D005260:Female; D006801:Humans; D007621:Karyotyping; D007962:Leukocytes / Q000166:cytology; D008297:Male; D012730:Sex Chromosomes; D013194:Staining and Labeling