title: Polymorphism and protein evolution. The neutral mutation-random drift hypothesis.
mesh_terms: D000483:Alleles; D000595:Amino Acid Sequence; D000818:Animals; D005075:Biological Evolution; D004586:Electrophoresis; D005787:Gene Frequency; D005815:Genetic Code; D014644:Genetic Variation; D005828:Genetics, Population; D006454:Hemoglobins; D006579:Heterozygote; D006801:Humans; D007527:Isoenzymes; D009154:Mutation; D010641:Phenotype; D011110:Polymorphism, Genetic; D011506:Proteins; D012641:Selection, Genetic; D013045:Species Specificity
chemical_list: D006454:Hemoglobins; D007527:Isoenzymes; D011506:Proteins