What is DNA and what does it look like?
The Tiniest Book
What is DNA and what does it look like?
Inside almost every one of your cells, tucked away like a secret, there's an instruction book. It tells your body how to build you — your eye color, your height, the exact curl of your hair. We call that book DNA. And here's the wild part: a copy of the whole book fits in a space far too small to see.
DNA stands for a long, clunky name — deoxyribonucleic acid — but don't worry about that. What matters is its shape. DNA looks like a ladder that someone grabbed by both ends and gave a slow, gentle twist. Scientists call that twisted-ladder shape a double helix.
