Study Guide Protein Synthesis Terms to know: mRNA tRNA rRNA Ribosome Genetic Code Amino Acid Polypeptide chain Protein Concepts: Where is mRNA made? What happens at the ribosome? What is the connection between DNA, a gene and a protein? How does the genetic code work? Can there be more than 1 codon for each amino acid? What are the differences between RNA and DNA? How many amino acids are there? What are the different functions of a protein? How mutations always harmful? Are they always beneficial? Explain. Diagrams: Be able to label the different parts of each diagram and explain the process that is illustrated.