So this is our mRNA molecule, and it consists of these three codons. So CGC UCC UUA CUG. Now let's suppose that some type of mutation arises in this mRNA molecule, and instead of producing this A, we essentially produce this g. So the mutation basically takes place on this red nucleotide. Now, when this mRNA molecule is placed into that ribosome, that ribosome will begin to read the codons one at a time. So first it reads CGC. Now, what is CGC?