nucleotide is a kind of repeating unit in dna
dna_molecule_nucleotide is nucleotide. nucleotide is molecule. dna_polymer is polynucleotide. nucleotide_structure_sequence is list. ribonucleotide is nucleotide. nucleotide is monomer. polynucleotide is nucleotide. adenine_nucleotide is nucleotide. uracil is nucleotide. oligonucleotide is nucleotide.