title: Identification of mutation responsible for an enzyme polymorphism.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001042:Aphids / Q000235:genetics*; D004591:Electrophoresis, Polyacrylamide Gel; D004950:Esterases / Q000032:analysis / Q000235:genetics*; D006863:Hydrogen-Ion Concentration; D011110:Polymorphism, Genetic
chemical_list: D004950:Esterases