In the previous post, we have takled about the workflow of DNA to RNA to Proteins, which is called DNA Transcription. When studying the genomics of some disease, sequencing the RNA (versus the DNA) becomes useful for many reasons:

Human body cells have a fairly complex workflow for functioning. Remember that all the cells in your body contain the exact same DNA sequence indside the nucleus. However, cells in your eyes behave differently from cells in your stomach, which also behave differently from cells in your skin. So, how could this happen?