1. Introduction and the history of race and racism
2. The origins of modern humans
3. The human genome : the genetic material that makes us who we are
4. Using polymorphisms to track human origins and world migrations
5. Why and how do populations become different : the role of isolation and environment
6. Biology and genetics say we are only variants of one species
Appendix 1. Notes for further reading ; Appendix 2. Expanded descriptions of mutations, polymorphisms, and genetic drift ; Appendix 3. References, resources, and further reading ; Appendix 4. Some interesting facts about human history ; Appendix 5. Some companies for gene analysis.
