And so if we want to describe the four different types of nucleotides on RNA molecules, we simply remove our deoxy term from this term, this term and this term. Now, because we don't have a thymine in RNA, this will be different in RNA. Now, the last thing I'd like to talk about is how we actually write down our sequence of nucleotides in a DNA molecule. So let's suppose we have the following three nucleotide nucleic acid. So since we're dealing with our deoxyribosugar, this is a DNA molecule. Now, the direction that we write our DNA molecule in is beginning at the five prime end and ending at the three prime end.