Molecular Genetics is a broad survey course in which students must acquire a firm conceptual understanding of the molecular mechanisms that govern basic genetic principles. This book provides the necessary foundation for most of the upper division courses in biology, and it is on par with similar molecular genetic courses at major research universities in the United States.This manual serves as a companion to the molecular genetics textbooks and was adapted from lectures presented from the Lewin-inspired Genes textbooks. It is not intended to cover all of the material presented in those lectures, but instead offers undergraduate students an opportunity to focus on topics that are more challenging in small, active learning environments. Often these problem-based concepts cannot be mastered until the student invests the time to work through them in their entirety. The exercises presented in Molecular Genetics are designed to satisfy this important learning objective of the course. Students are reminded that answers to the questions at the end of each discussion can sometimes be found within the written explanations in the manual. Other times, it will be necessary to refer to class notes, the textbook, and/or other resources to answer these questions correctly.