This work explores the world of the ever-advancing science of genes and DNA, from the basics of genes and their function as the code for life through variation in families and heredity, to the wide-ranging applications of DNA technology that are so relevant in the 21st century: forensics, DNA and history, gene therapy, cloning and genetic engineering. The book approaches many of the ethical issues and questions that surround DNA technology, while aiming to inspire readers to explore this subject further. Information panels throughout the book lead the reader to further discovery and each chapter offers website links, book lists, places to visit and career information.