oligonucleotide fragments of the general sequence abn , bnc and abnc as building units for polynucleotide synthesis can be obtained by three types of reactions , namely the sequence-specific co-condensation of nucleic acid constituents , the sequence-specific degradation of copolymers and the limited addition of nucleotides to primers .
C0028953
oligonucleotide
C0032550
polynucleotide