A family with one child of phenotype A-m providing further evidence for the existence of the modifier genes Y-y.
D000483:Alleles; D000937:Antigen-Antibody Reactions; D005075:Biological Evolution; D001789:Blood Group Antigens; D004912:Erythrocytes / Q000276:immunology; D005260:Female; D005808:Genes, Recessive; D005826:Genetics, Medical; D006801:Humans; D007158:Immunologic Techniques; D010375:Pedigree; D010641:Phenotype; D012463:Saliva / Q000276:immunology
D001789:Blood Group Antigens