Interaction between the proximo-distal and antero-posterior co-ordinates of positional value during the specification of positional information in the early development of the chick limb-bud.
D000818:Animals; D002454:Cell Differentiation; D017690:Cell Transplantation; D002642:Chick Embryo; D005121:Extremities / Q000196:embryology*; D006811:Humerus / Q000196:embryology; D009024:Morphogenesis; D011884:Radius / Q000196:embryology; D013997:Time Factors; D014457:Ulna / Q000196:embryology