title: Frequency-dependent selection at two enzyme loci in Drosophila melanogaster.
mesh_terms: D000429:Alcohol Oxidoreductases / Q000378:metabolism; D000818:Animals; D004331:Drosophila melanogaster / Q000201:enzymology; D004950:Esterases / Q000378:metabolism; D005787:Gene Frequency; D011110:Polymorphism, Genetic; D012641:Selection, Genetic
chemical_list: D000429:Alcohol Oxidoreductases; D004950:Esterases