title: Nomenclature Committee for the International Union of Biochemistry (NC-IUB). Nomenclature for incompletely specified bases in nucleic acid sequences. Recommendations 1984.
mesh_terms: D001483:Base Sequence; D003062:Codon; D004262:DNA Restriction Enzymes; D014176:Protein Biosynthesis; D011687:Purines; D011743:Pyrimidines; D009626:Terminology as Topic
chemical_list: D003062:Codon; D011687:Purines; D011743:Pyrimidines; D004262:DNA Restriction Enzymes