R. Scott Hawley (PhD, Genetics, University of Washington) is an American Cancer Society Research Professor and Investigator at the Stowers Institute for Medical Research. He has served as President of the Genetics Society of America in 2010 and in 2008 he received that society's Elizabeth W. Jones Award for Excellence in Teaching. He widely known for his teaching, for his research on meiosis and for the authorship of numerous textbooks and research papers.Catherine Mori is an accomplished health education writer. Her previous writing has concentrated on drug- and alcohol-related risks to health and on the treatment and prevention of drug and alcohol addiction. Her interest in human genetics began when she attended Dr. Hawley's Human Genetics course for non-majors at UC Davis. She has worked extensively as a management consultant in the private sector and is currently working at IBM Global Services in Mountain View, California.