Frequencies of Kidd blood types: Gene SLC14A1, Marker rs1058396 Jk(a+b+): 50% Europeans, 41% Africans, 49% Asians Jk(a+b-): 26% Europeans, 51% Africans, 23% Asians Jk(a-b+): 23% Europeans, 8% Africans, 27% Asians
