On structural analysis of chemical mutations.
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D001482:Base Composition; D001483:Base Sequence; D055598:Chemical Phenomena; D002621:Chemistry; D004355:Drug Stability; D005796:Genes; D008433:Mathematics; D008967:Molecular Biology; D008969:Molecular Sequence Data; D009154:Mutation; D009696:Nucleic Acids / Q000235:genetics*; D011687:Purines / Q000032:analysis*; D011743:Pyrimidines / Q000032:analysis*
D009696:Nucleic Acids; D011687:Purines; D011743:Pyrimidines