Question

a deoxyribose sugar, phosphate group, and a nitrogen - containing base (a,c,t,g) make up a ______, the monomer of dna.

Explanation:

DNA is a polymer composed of repeating monomer units. Each unit consists of a deoxyribose sugar, a phosphate group, and one of four nitrogenous bases (adenine, cytosine, thymine, guanine). These monomers are the building blocks of DNA strands.

Answer:

nucleotide