Genetic code

Genetic code is like a secret language that tells your body what to do! Everyone's body has a special code made up of four letters called nucleotides, which are like the letters of the alphabet. Your body reads these letters to make instructions for building proteins, which help your body do all kinds of important things. For example, proteins help your eyes to see, your lungs to breathe, and your muscles to move. All living things have a different version of genetic code that is unique to their species.