How are rna and dna used to make proteins? a-rna has coded instructions for making proteins, and dna translates the code. b-dna forms the monomers that make up rna, and rna forms the monomers that make up proteins. c-rna forms the monomers that make up dna, and dna forms the monomers that make up proteins. d-dna has coded instructions for making proteins, and rna translates the code.