title: Non-randomness of base replacement in point mutation.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002874:Chromosome Mapping; D003062:Codon; D004247:DNA / Q000032:analysis*; D005815:Genetic Code; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D008954:Models, Biological; D009154:Mutation; D011336:Probability; D011506:Proteins / Q000032:analysis
chemical_list: D003062:Codon; D006454:Hemoglobins; D011506:Proteins; D004247:DNA