DNA Double Helix Model

A clean, 3D-printable model of the DNA double helix — the molecule that carries the genetic code of every living thing. Both sugar-phosphate backbones spiral evenly around a central ladder of base-pair rungs, giving the crisp, symmetrical twist everyone recognises from a biology textbook. Because the rungs are horizontal overhangs, it prints most cleanly with light supports, or split into a couple of sections and joined — worth a fine layer height to keep the spiral smooth. Stand it upright as a striking desk or shelf piece. A neat gift or teaching aid for anyone into biology, genetics, or science in general — the shape of life itself, scaled to your printer.