DescriptionThe model of the French flag by Lewis Wolpert.gif
English: The diffusion of a morphogen in an elongated compartment. The three colors blue, white and red represent three concentration ranges of the initial morphogen, which can then activate three gens in a differentiated manner, and thus be at the origin of three different parts of the organism. The Python file which generated this image is here: Wikipedia:User:Thierry Dugnolle/Python/The French flag model of Lewis Wolpert.
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