title: Subunit size and genetic variation of enzymes in natural populations of Drosophila.
mesh_terms: D000483:Alleles; D000818:Animals; D004331:Drosophila melanogaster / Q000201:enzymology*; D005787:Gene Frequency; D014644:Genetic Variation; D005828:Genetics, Population; D006579:Heterozygote; D008968:Molecular Conformation; D008970:Molecular Weight; D011110:Polymorphism, Genetic