title: Opossum Hb chain sequence and neutral mutation theory.
mesh_terms: D000222:Adaptation, Physiological; D000595:Amino Acid Sequence; D000818:Animals; D005075:Biological Evolution; D002417:Cattle; D004285:Dogs; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D008322:Mammals; D009154:Mutation; D009893:Opossums / Q000097:blood*; D011817:Rabbits
chemical_list: D006454:Hemoglobins