In what way are the structures of dna and protein similar?

They are similar in three main ways 1. Both DNA and proteins are polymers. 2. Both are made from smaller subunits joined together. DNA is made of subunits called nucleotides joined together and protein is made up subunits called amino acids joined together. 3. In both of them, these subunits or monomers are linked together by covalent bonds. Nucleotides are a combination of a nitrogen - rich base that is either adenine, guanine, cytosine or thymine, together with a phosphate group and a sugar.