The teaching of evolution, the unifying concept for all of biology, increasingly is under attack in the United States and several other countries, as critics try to discredit the theory itself or attempt to introduce unscientific alternatives such as "intelligent design theory" into the science classroom. Genetics and evolution are intimately related, so much so that it is difficult to understand one without some understanding of the other. In fact, many members of the American Society of Human Genetics work directly on evolution-related research problems, and it is safe to say that the work of virtually all other members is informed in one way or another by evolution theory.

This ongoing series of essays, all by ASHG members, demonstrates the historical, conceptual, and practical connections between genetics - especially human genetics - and evolution. We hope that these essays will help our readers see more clearly the centrality of evolution theory to biology and its importance for science education while providing as well some insights into the diverse interests of our members. We welcome your feedback and questions, which you can submit by emailing Kenna Shaw.

• Tinkered Masterpieces or Master Tinker:
  Charles R. Scriver, Alva Professor Emeritus of Human Genetics, McGill University, McGill University Hospital Center.

• Genetic Variation and Human Evolution:
  Lynn B. Jorde, Ph.D., Department of Human Genetics, University of Utah School of Medicine.

• Evolution and Medicine:
  Barton Childs, MD, Professor Emeritus of Pediatrics and Biology, Johns Hopkins University School of Medicine

Information and Education Committee

American Society for Human Genetics