Developmental biology. We may not have a morphogen.
Brockes
J
J
D000818:Animals; D002352:Carrier Proteins / Q000378:metabolism; D002645:Chickens; D005121:Extremities / Q000254:growth & development / Q000502:physiology; D006801:Humans; D008954:Models, Biological; D009024:Morphogenesis / Q000187:drug effects*; D018168:Receptors, Retinoic Acid; D012038:Regeneration / Q000187:drug effects; D014212:Tretinoin / Q000494:pharmacology*; D014562:Caudata
D002352:Carrier Proteins; D018168:Receptors, Retinoic Acid; D014212:Tretinoin