Developmental biology. Hedgehog keeps to the left.
Wolpert
L
L
Brown
N A
NA
D028341:Activins; D000818:Animals; D002642:Chick Embryo; D004625:Embryo, Nonmammalian / Q000033:anatomy & histology; D047108:Embryonic Development; D004627:Embryonic Induction / Q000235:genetics / Q000502:physiology*; D053823:Hedgehog Proteins; D007265:Inhibins / Q000235:genetics / Q000502:physiology; D011506:Proteins / Q000235:genetics / Q000502:physiology*; D015534:Trans-Activators
D053823:Hedgehog Proteins; D011506:Proteins; D015534:Trans-Activators; D028341:Activins; D007265:Inhibins