"I am the blueprint for every living thing on earth. I am twisted like a ladder. I am found inside almost every cell of your body. I contain the instructions that make you, you. What am I?"

Answer: DNA. DNA (deoxyribonucleic acid) is a double helix molecule containing the genetic instructions for every living organism. It is coiled inside the nucleus of nearly every cell in your body. The complete human genome contains about 3 billion base pairs.