In the rapidly advancing science of genetics, currency and accuracy are critical in any book. The second edition of Principles of Genetics presents the most up-to-date developments in genetics as well as the fundamental principles. It stresses how genetics is done and provides historical and biographical insights to the people and events that have made genetics a pre-eminent science. Snustad and Simmons provide a clear, concise presentation of the basic principles and concepts of genetics. Contains discussions of the methods and experiments upon which genetic principles are based, such as DNA replication. Topics such as the Human Genome, inherited human diseases, and the genetic basis of human behavior are discussed in the book and in special Human Genetics Sidelights. Conversations with famous geneticists introduce readers to the faces behind the science. Updated to include two new chapters on cancer and genomics, the chapter on inheritance patterns has been moved forward to follow the Mendelism sequence, and evolution chapters have been combined.