title: Origin of the somatic components in chick embryonic gonads.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D005260:Female; D008297:Male; D008650:Mesonephros / Q000166:cytology; D010053:Ovary / Q000166:cytology / Q000196:embryology*; D013737:Testis / Q000166:cytology / Q000196:embryology*