title: Theoretical implications of the application of polymorphic protein systems to gene location on a trisomic chromosome, and its application to the haptoglobin phenotype frequencies in Down's syndrome.
mesh_terms: D000410:Alanine Transaminase; D000483:Alleles; D000619:Aminohydrolases; D000681:Amylases; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002874:Chromosome Mapping; D003434:Crossing Over, Genetic; D004314:Down Syndrome / Q000235:genetics; D004592:Electrophoresis, Starch Gel; D005838:Genotype; D006242:Haptoglobins / Q000097:blood; D006801:Humans; D007122:Immunoelectrophoresis; D008607:Intellectual Disability / Q000235:genetics; D008540:Meiosis; D008954:Models, Biological; D010435:Pepsinogens / Q000652:urine; D010641:Phenotype; D010733:Phosphoglucomutase; D011110:Polymorphism, Genetic; D014314:Trisomy
chemical_list: D006242:Haptoglobins; D010435:Pepsinogens; D000410:Alanine Transaminase; D000681:Amylases; D000619:Aminohydrolases; D010733:Phosphoglucomutase