Self-Replicating Molecule DNA's structure is shown here, giving the location of the atoms and bonding in the two sugar-phosphate backbones and the central bases. Hydrogen bonds hold the bases (rungs) together. About thirty five base pairs are shown, which is a tiny fragment of a real gene.
Size 2 .....is 50 x 50 x 130 mm (2 x 2 x 5 inc