INTRODUCTION
Modern science and technology has made fascinating discoveries and incredible innovations. There have been amazing advances in all areas and disciplines from engineering and robotics to science and medicine. It is the latter that has made some of the greatest advances and innovations. Human beings learn more and more everyday about how to treat illnesses and prevent diseases. They have also learned so much about the how the human body works; right down to the genes that make all living things what they are. It is possible today for scientists to understand how genes affect traits and that sometimes ...