GENETICS: GENE EXPRESSION: An entry from Macmillan Reference USA's <i>Encyclopedia of Aging</i>

As the Baby Boomers head toward retirement, the four-volume “Encyclopedia of Aging” offers a timely resource encompassing all aspects of aging. Covering a variety of disciplines—biology, medicine, economics, law, psychology, sociology and history—the Encyclopedia also explores related issues such as religion, spirituality, and ethics.