title: Action of African B gene on A, subgroup of A.
abstract: The action of strong B gene on A1, subgroup of A is demonstrated in a family of 18 individuals. The inheritance of A2BHw and A2BHw is explained. Attention is drawn to these subgroups in parentage studies, especially in Africans.
mesh_terms: D000017:ABO Blood-Group System; D000349:Africa; D044383:Black People; D005260:Female; D006801:Humans; D008297:Male; D010375:Pedigree; D010641:Phenotype
chemical_list: D000017:ABO Blood-Group System