title: Lack of tanning in white Merino sheep following exposure to ultraviolet light.
mesh_terms: D000818:Animals; D008543:Melanins / Q000378:metabolism; D008544:Melanocytes / Q000528:radiation effects; D012756:Sheep; D012880:Skin Pigmentation / Q000528:radiation effects*; D014466:Ultraviolet Rays
chemical_list: D008543:Melanins