title: Cytogenetic studies of a family with trisomy 21 mosaicism in two successive generations as the cause of Down's syndrome.
mesh_terms: D000328:Adult; D002675:Child, Preschool; D002871:Chromosome Banding; D002901:Chromosomes, Human, 13-15; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000235:genetics*; D005260:Female; D005819:Genetic Markers; D006801:Humans; D008297:Male; D009030:Mosaicism; D009630:Nondisjunction, Genetic; D010375:Pedigree; D014314:Trisomy
chemical_list: D005819:Genetic Markers