This popular textbook has been completely revised and updated to provide a comprehensive overview and to reflect all the latest developments in this rapidly expanding area. Chapters on the impact of molecular biology in the development of biotechnology have been fully updated and include the applications of molecular biology in the areas of drug design and diseases. There are also completely new chapters in developing areas such as genome technology, nanobiotechnology, regenerative medicine and biofuels. By presenting information in an easily assimilated form, this book makes an ideal undergraduate text.