"Down syndrome is caused by a flaw in the genetic code that affects the mental and physical development of people with it. This book describes the condition and the genetic causes behind it, follows researchers on their path to scientific discovery, identifies people with the condition who have excelled despite the bullying they endure, and tracks the latest treatments and research aimed at helping those living with it. Sidebars highlight medical breakthroughs and the people who made them."--Publisher.

Right and wrong -- Mistake in meiosis -- A need for change -- Improved environment -- Rapid advancements.