Question

which of the following units are repeatedly joined together to form a strand of dna? (this is the monomer of dna.) polysaccharides nucleotides amino acids fatty acids

Explanation:

DNA is a nucleic acid. Nucleic acids are polymers made of nucleotides. Polysaccharides are sugar polymers. Amino acids are the monomers of proteins. Fatty acids are part of lipids.

Answer:

nucleotides