title: Biochemical Polymorphisms: the unit of selection and hypothesis of conditional neutrality.
mesh_terms: D000483:Alleles; D000818:Animals; D005075:Biological Evolution; D014644:Genetic Variation; D007527:Isoenzymes / Q000235:genetics / Q000502:physiology; D011110:Polymorphism, Genetic; D012641:Selection, Genetic
chemical_list: D007527:Isoenzymes