This book is for undergraduate students, graduate students and professionals in biology and other sciences who require a concise but comprehensive introduction to population genetics. Starting with the basic concepts of molecular genetics, it examines the principal methods by which DNA (or proteins) can be manipulated to reveal genetic polymorphisms in any population. Numerous practical examples are included, showing how the theoretical concepts are applied to actual data. To reinforce ideas, each chapter concludes with about 20 problems, arranged in order of difficulty.