And that's exactly why we have to use these RNA molecules because the DNA molecules consist predominantly of non coding regions. So one reason why we use the process of transcription is to basically only transcribe the genes into our RNA molecules so that we don't have to worry about the non coding regions about the non coding regions that basically do not code for any protein. Now let's recall what the process of transcription is. So as we mentioned earlier, the process of transcription is pretty simple and that's because both RNA and DNA molecules are polymers of the same exact units of the same exact molecule known as the nucleotide. The only difference between the nucleotides of RNA and DNA molecules is that in DNA the sugar is the deoxyribose and in RNA the sugar is the ribose and in RNA the thymine are replaced with the uracil nitrogenous bases. So let's take a look at the following diagram.