Nomenclature for incompletely specified bases in nucleic acid sequences. Recommendations 1984. Nomenclature Committee of the International Union of Biochemistry (NC-IUB).
D000225:Adenine; D001483:Base Sequence; D003062:Codon; D003596:Cytosine; D004247:DNA; D004262:DNA Restriction Enzymes; D006147:Guanine; D009711:Nucleotides; D014176:Protein Biosynthesis; D012313:RNA; D013379:Substrate Specificity; D009626:Terminology as Topic; D013941:Thymine
D003062:Codon; D009711:Nucleotides; D006147:Guanine; D012313:RNA; D003596:Cytosine; D004247:DNA; D004262:DNA Restriction Enzymes; D000225:Adenine; D013941:Thymine