title: Z/Z antigen as a result of interaction of two identical allelic genes of the Z blood group system in cattle.
mesh_terms: D000483:Alleles; D000818:Animals; D001789:Blood Group Antigens / Q000235:genetics / Q000276:immunology*; D002417:Cattle / Q000235:genetics / Q000276:immunology*; D006720:Homozygote; D007114:Immunization
chemical_list: D001789:Blood Group Antigens