The book has been extensively revised for this new edition, but retains its basic format which fits the pre-clinical and clinical courses at medical school. The first half of the book covers the basic principles of human genetics including chromosomes, sex-linked inheritance and population genetics while the second part covers clinical applications including genetic assessment and counselling, genetic disorders and pre-natal diagnosis. This book is intended for pre-clinical and clinical medical students, dental students, obstetricians, gynaecologists, pharmacologists, medical laboratory scientists, cell biologists and biochemists.