One unpleasant aspect of genetic disease is that often they come unexpectedly and with little warning. A few summers ago, my little sister [Lisa]’s face began to undergo a startling metamorphosis. Her skin, once bronze and glistening, began turning white as death and splotchy. My sister’s precious forehead, hair and eyelids began to look like a pale jigsaw puzzle, interrupting her once perfect complexion. This genetic disorder, vitiligo, has permanently changed her appearance and her daily life. I looked on angrily, frustrated by my helplessness, as doctors prescribed her various treatment creams, but offered no cure. My love for my little sister and unrelenting wish for her happiness fueled me to seek the source of her problem – which lies in genetic research.…