Learning is fun with this entertaining and informative book about genetics. Forty-six illustrations are accompanied by easy-to-read captions explaining that genes are "chemical instructions" necessary for living things to stay alive and reproduce. Perfect for kids ages 8 and up, this book describes what genes control and how they are passed along from one generation to the next, genes and DNA, genes and proteins, genes that turn on and those that turn off, genes that protect us from harmful bacteria and viruses, and genes that scientists transfer from one kind of living thing to another.