title: [Comparative analysis of the polymorphism of the heterochromatic regions of chromosomes 1, 9, 16 and Y in healthy children and children with mild forms of mental retardation].
mesh_terms: D000293:Adolescent; D002478:Cells, Cultured; D002648:Child; D002675:Child, Preschool; D002900:Chromosomes, Human, 1-3 / Q000648:ultrastructure*; D002902:Chromosomes, Human, 16-18 / Q000648:ultrastructure*; D002906:Chromosomes, Human, 6-12 and X / Q000648:ultrastructure*; D006570:Heterochromatin / Q000648:ultrastructure*; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D007962:Leukocytes / Q000648:ultrastructure; D008297:Male; D011110:Polymorphism, Genetic; D012730:Sex Chromosomes / Q000648:ultrastructure*; D014998:Y Chromosome / Q000648:ultrastructure*
chemical_list: D006570:Heterochromatin
vernacular_title: Sravnitel'nyĭ analiz polimorfizma geterokhromaticheskikh raĭo nov khromosom 1, 9, 16 i Y u zdorovykh deteĭ i deteĭ s legkimi formami umstvennoĭ otstalosti.