reveals how all traits-even characteristics like eye and hair color-are caused by complex interactions between genes and the environment at every stage of biological and psychological development, from the single fertilized egg to full-grown adulthood. How we understand the nature versus nurture debate directly affects our thoughts about such basic issues as sex and reproduction, parenting, education, and crime, and has an enormous impact on social policy. With life-and-death questions in the balance surrounding stem-cell research, cloning, and DNA fingerprinting, we can no longer afford to be ignorant of human development. An enlightening guide to this brave new world, The Dependent Gene empowers us to take control of our own destiny.

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