The use of mathematical modelling to formulate and test theories is still quite rare in biology. It has now been applied to show how a robust, sharp peak of signalling molecules can be formed in developing fruitfly embryos.
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Meinhardt, H., Roth, S. Sharp peaks from shallow sources. Nature 419, 261–262 (2002). https://doi.org/10.1038/419261a
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DOI: https://doi.org/10.1038/419261a
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