A screw is an example of a helix,a special kind of space curve. The DNA molecule is a double helix,or two intertwined helices | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Winters, Charles D. |
Taille de l’image : | 2550 px × 2583 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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