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The Double Helix

Scroll down to begin a journey through the structure of DNA. The iconic double helix forms the backbone of life's genetic code.

Base Pairs

The "rungs" of the DNA ladder are made of four nucleobases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C).

Interactive Exploration

You can freely explore the model. Drag any component to learn more about it. Use the controls at the bottom to pause or view in wireframe mode.