title: [Chromosom al polymorphism in families at risk C-- and Q-- variants in parent and fetal cells].
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics; D002900:Chromosomes, Human, 1-3; D002904:Chromosomes, Human, 21-22 and Y; D002906:Chromosomes, Human, 6-12 and X; D004314:Down Syndrome / Q000235:genetics; D014644:Genetic Variation; D006570:Heterochromatin / Q000032:analysis*; D006801:Humans; D011110:Polymorphism, Genetic
chemical_list: D006570:Heterochromatin
vernacular_title: Chromosomální polymorfismus v rizikových rodinách C-- A Q-- varianty v rodicovských a fetálních bunkách.