title: Electrophoretic variations of proteins in the tree sparrow, Passer montanus.
mesh_terms: D000818:Animals; D001717:Birds / Q000235:genetics*; D004591:Electrophoresis, Polyacrylamide Gel; D014644:Genetic Variation; D011110:Polymorphism, Genetic; D011506:Proteins / Q000235:genetics*
chemical_list: D011506:Proteins