The Book of Life (scientific concept)

The "Book of Life" in scientific terms is a metaphor for the genome—the complete set of DNA in an organism. DNA contains all the genetic instructions needed for growth, development, and functioning. Think of it as a biological blueprint or record of an individual's inherited traits. This information guides how cells build proteins and perform their roles, ultimately shaping an organism's characteristics. While not literally a book, the genome is a comprehensive, coded library that scientists study to understand biology, heredity, and evolution.