"The Gene" is a book by Siddhartha Mukherjee that explores the history and science of genetics. It discusses how genes, the basic units of heredity, influence our traits, behaviors, and health. The book delves into the discoveries of key figures in genetics, such as Gregor Mendel and James Watson, and explains the role of DNA in inheritance. Additionally, Mukherjee examines the ethical implications of genetic research and technology, including topics like genetic engineering and CRISPR. He highlights the potential benefits and risks associated with manipulating genes, prompting readers to consider the future of genetics in society.