Amazing medical breakthroughs are made every day. In the past decades, medical researchers have cured diseases that were once deadly and devised new methods to heal that were once unimaginable. This title follows the development of gene therapy, including the discovery of DNA, groundbreaking discoveries and the doctors who made them, and where the science is heading in the future. Learn how gene therapy works and why future applications of the technology will be controversial. Sidebars, full-color photos, a glossary, and well-placed graphs, charts, and maps, enhance this engaging title. Aligned to Common Core Standards and correlated to state standards. Essential Library is an imprint of Abdo Publishing, a division of ABDO.