The Genetic Code

**The most important scientific breakthrough in modern times** came in 1944 when O.T. Avery and two colleagues discovered DNA. This mysterious substance is the basis of all life on earth…DNA determines the nature of every living organism from the ameoba to man. In **The Genetic Code** Isaac Asimov traces, step by step, the scientific research that led to this great achievement. He analyzes its meaning and its consequences and, in a fascinating forecast, he speculates on how this new genetic knowledge can be used to control the physical and mental development of a future race of men.