Book excerpt: "Biotechnology encompasses the variety of methods available for manipulating living cells and organisms. It is having an increasing impact on all aspects of medicine, from helping in the understanding of the aetiology of disease, to its diagnosis and treatment. This growing importance of medical biotechnology means that a general understanding of this rapidly advancing field is essential for all medical graduates and medical scientists. This book places emphasis on the medical applications of biotechnology, rather than the details fo the experimental techniques"--Back cover.