- Nucleotide is a kind of repeating unit in dna
- Nucleotide is a kind of monomer
- So, a nucleotide is a repeating monomer in dna

- A nucleotide is a repeating monomer in dna
- Dna is a kind of molecule
- So, a nucleotide is a repeating monomer in dna molecule

Hence, a nucleotide is a repeating monomer in dna molecule
What is the repeating monomer of a DNA molecule?
- Nucleotide is a kind of repeating unit in dna 
- Nucleotide is a kind of monomer 
- Dna is a kind of molecule