DNA and RNA explores Friedrich Miescher's major scientific discovery in 1944 when he isolated DNA for the first time, forever changing our understanding of the building blocks of the human body. The book looks at Miescher's path to isolating DNA and the ways that his work influenced James Watson and Francis Crick, who discovered the double helix in 1957. DNA and RNA describes the many ways that these discoveries are relevant to our lives, as well as the numerous ethical implications of the discoveries.