Molecular model of DNA (22 base pairs)

Double helix of DNA with 22 base pairs.
At a height of 44 cm, the shapes and colors of the different elements (nitrogenous bases, sugars, and phosphates) allow each element to be identified and the structure of the DNA molecule to be reconstructed.
This model can be unwound and the strands separated to illustrate the replication process.

11 thymines (orange), 11 adenines (blue), 11 guanines (green), 11 cytosines (yellow), 44 deoxyriboses (red), 44 phosphates (purple), 23 spacers.