title: CHROMOSOMES WITHOUT TEARS. I.
mesh_terms: D002455:Cell Division; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002875:Chromosomes; D004247:DNA; D004314:Down Syndrome; D007713:Klinefelter Syndrome; D012106:Research; D012728:Sex Chromatin; D014314:Trisomy; D014424:Turner Syndrome
chemical_list: D004247:DNA
keywords: CELL DIVISION; CHROMOSOME ABNORMALITIES; CHROMOSOMES; DNA; EXPERIMENTAL LAB STUDY; KLINEFELTER'S SYNDROME; MONGOLISM; SEX CHROMATIN; TRISOMY; TURNER'S SYNDROME