DNA sequence is like a blueprint for a person or an animal. It tells the cells how to build and behave like that person or animal. Think of it like a recipe for a cake. Just like how you follow a recipe in the kitchen, cells read the DNA sequence to know how to make and maintain a living creature.
The DNA sequence is made up of 4 different "letters" in a code, called A, T, C, and G. They are like the letters of the alphabet, but only four of them.
Each living creature has a unique DNA sequence that was passed down from its parents. For example, if your mom has blue eyes and your dad has brown eyes, your DNA sequence will have a mix of those eye color genes. This is what makes people different from one another.
Scientists can study and read the DNA sequence to learn more about the genetic makeup of a living creature. By looking at the sequence, they can figure out what traits or diseases a person might be prone to, and they can also use this information to develop new treatments or cures for genetic diseases.