Extensively reviewed and class tested by instructors over the past four years with students at Michigan State University, this advanced level textbook offers an in-depth look at molecular biology and biochemistry. The breadth and diversity of bacterial genetics are explored in discussions of microbial systems beyond the much-studied E. coli. Boxed sections are included in every chapter that offer students enriching and challenging material, and chapters end with a review of key concepts, a set of discussion questions, a set of problems for homework and testing assignments, and answers. All the key terms are listed in a glossary and valuable much-used information is included inside the front cover for easy reference.