to reconcile codominant inheritance of classic h-2 antigens with the apparent recessive inheritance of hybrid resistance , we assume that there exist parental determinants that are not formed in some f1 hybrids due to preferential association of either ia alpha chains with allogeneic beta chains or of class i antigens with allogeneic or hybrid class ii restriction elements .
C0018442
h-2 antigens
C0019629
class i