Presents the classical principles of human genetics as applied to medicine as well as a new emphasis on molecular genetics and the treatment of genetic disease. Includes new, updated chapters on chromosomes, gene mapping and the human genome project, molecular basis of disease, and genetics of cancer. It presents three new appendices on chromosome banding ISCN diagrams, CHI square, and the Lod score table. Updated problems and answers are available for all chapters. An undergraduate textbook, it is also useful to health practitioners.