title: Molecular evolution: the neutralist - selectionist controversy.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D005075:Biological Evolution; D005787:Gene Frequency; D006454:Hemoglobins; D006801:Humans; D009154:Mutation; D011110:Polymorphism, Genetic; D011506:Proteins
chemical_list: D006454:Hemoglobins; D011506:Proteins