Dna, amino acids, and proteins are all molecules that play a vital role in your life, even though you have never seen them. in fact, these three types of molecules are tightly linked. what is the relationship between them? a) dna codes call for specific amino acids, which are assembled into proteins needed by your body. b) amino acids combine specific dna strands into the proteins that are used throughout your body. c) proteins combine specific dna strands into the amino acids that are used throughout your body. d) dna codes call for specific proteins, which are assembled into the amino acids needed by your body.