This third edition of a student-tested primer provides guided instruction in the analysis and interpretation of genetic principles and problem solving. All core areas of genetics are covered. Each section is introduced with a summary of key concepts and terms. A series of problems, graded from simple to more complex, then allows students to test their understanding of the material. Each question is accompanied by a detailed explanation. This new edition includes additional problems, extensively expanded coverage of molecular biology throughout, new overview chapters, and an expanded glossary.