what are the monomers of dna called

The monomers of DNA are called nucleotides.

Each DNA nucleotide has three main parts.

• A phosphate group
• A deoxyribose sugar (a 5‑carbon sugar)
• A nitrogenous base (adenine, thymine, cytosine, or guanine)

These nucleotides link together in long chains to form the DNA polymer and its famous double helix structure.