Tenth graders work with a partner, and copies of the attached worksheet "Amino Acid Codon Table" They discuss ways an organism, obtains and uses proteins. Students view a teacher prepared DNA strand banner, and record the complementary DNA sequence that would form during replication. Students receive one of the needed eight codon or mRNA anti-codon cards (also teacher created), 10th graders arrange themselves in the correct mRNA sequence. Students discuss real life examples.