And that gives us many, many possibilities and many applications. And that's exactly why biotechnology is not only used in biochemistry it is also used in many different types of fields. For example, the field of medicine and the field of forensic science also used biotechnology. So in medicine, we can use biotechnology to synthesize a variety of different types of proteins and enzymes and hormones. So these biological molecules that are used by our body we can also detect the presence of different types of abnormalities and conditions that might be found in some specific individual. Now, in forensic science we can use biotechnology for instance, to determine whether or not an individual might have been present at a crime scene or might have committed a crime as we'll see in just a moment.