... you. Then, we ll take a look inside the labs, where key developments are happening in the hot areas of DNA fingerprinting, gene test-ing, cancer research, gene therapy, cloning and stem cell ... will dominate in the twenty-first century, and you need to understand the terms and the concepts if you’re going to stay on top of and benefit from the huge DNA-related advances in medicine and other ... ofprotein. And each kind of protein has a specific job to do. There are structural proteins for building your hair (collagen), your skin (ker-atin), and your ligaments (elastin). Hormonal proteins...