The idea that gene variants alone control an organism's traits is overly simple. A study of the effects of gene interactions on the outcomes of random variation in gene expression reveals the complex reality. See Letter p.250
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El-Samad, H., Weissman, J. Noise rules. Nature 480, 188–189 (2011). https://doi.org/10.1038/480188a
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DOI: https://doi.org/10.1038/480188a
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