Gene-based techniques have revolutionized our understanding of biology and had a direct impact on many aspects of our lives, from clinical medicine to agriculture. "Route Maps" takes a fresh look at this pivotal and exciting subject, within the larger context of molecular biology as a whole. Rather than follow a traditional 'narrative', "Route Maps" employs an innovative structure, made up of discrete units that allow the reader to choose from any number of pathways in discovering the concepts of molecular biology, the principles of a recombinant DNA technology and its key methods." Route Maps" is written primarily as an introductory text for undergraduate and graduate students in all areas of