Outlines the startling advances in molecular biology that have brought mankind to the threshold of a profound new awareness. This understanding will reach fruition through the recently launched Human Genome Project which will eventually delineate all three billion molecules that make up the human DNA, the genetic blueprint of the human race. Exact determination of our genetic make-up will revolutionize our understanding of inherited diseases, and reveal individuals' predispositions to cancers, heart conditions, mental illnesses and other ailments. It will expose the underlying causes of differences between individuals, such as musical ability or height.