This is one of the few medical genetics texts on a 2-year revision cycle. It provides up-to-date information that can be read, retained, and applied with ease! The 3rd Edition covers pharmacogenomics: the societal implications of technologies: the Human Genome Project; cloning, genetic enhancement, and embryonic stem cell research: new tumor suppressor genes and oncogenes and more. Mini-summaries, study questions, suggested readings, and a detailed glossary facilitates review of the material. Clinical relevance is demonstrated in over 230 photographs, illustrations, and tables as well as boxes containing patient/family vignettes, coverage of ethical, legal, and social issues and clinical commentary on important genetic diseases. A companion web site offers continuing updates and a wealth of additional features.