Why do people have certain traits and talents? We are all who we are because cells in our bodies grow and respond according to instructions from DNA molecules. RNA carries the DNA details from the cell nucleus to other parts of the cell. Engaging language and detailed, colorful images and diagrams simplify complicated scientific principles into pieces of information students can comprehend more easily. They will gain a deeper understanding of how DNA and RNA work together to make all the individual humans, animals, and plants on our planet.