Therefore, if a point mutation occurs, if a point mutation occurs and causes a change in the codon, but the new codon still codes for the same exact amino acid, no change in protein structure will take place because our sequence of amino acids will be exactly the same. Now, to see what that actually means, let's take a look at the following diagram. So, let's suppose this is our DNA template that we're going to use to basically synthesize our mRNA molecule. This is our antisense strand. So basically, on the five end, we have the C, then the A, the C, the G, the C, and on the three N, we have the g nucleotide. Now, if we actually use this DNA molecule and transcription takes place, then we synthesize the following mRNA molecule where the C becomes a G, the A becomes a U, the C becomes a G, the G becomes a C. The C becomes a g and the g becomes a C. So this is our sequence of nucleotides on the mRNA molecule that will be used to synthesize our protein.