title: Selection acting directly on an enzyme polymorphism.
abstract: A biochemical approach is utilised in the study of the maintenance of variation at the Adh locus in Drosophila melanogaster. There is a direct correlation between biochemical findings and the results of competition experiments. The relevance of these findings to the study of other enzyme polymorphisms is discussed.
mesh_terms: D000429:Alcohol Oxidoreductases / Q000378:metabolism*; D000483:Alleles; D000818:Animals; D004331:Drosophila melanogaster / Q000201:enzymology*; D004586:Electrophoresis; D005260:Female; D005787:Gene Frequency; D014644:Genetic Variation; D006720:Homozygote; D008297:Male; D011110:Polymorphism, Genetic; D012641:Selection, Genetic
chemical_list: D000429:Alcohol Oxidoreductases