English: In the depicted representation of Fisher's Infinitesimal Model, we observe genetic loci effects against their resultant phenotypic distributions. As the number of loci increases, trait distributions approach a Gaussian form, illustrating the Central Limit Theorem's influence on polygenic traits. The increased number of loci diminishes the relative impact of individual loci magnitudes, emphasizing the collective influence of many loci in shaping complex phenotypes. This matrix highlights the direct relationship between minor allelic variations and phenotypic variance in quantitative genetics.
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Captions
In 1918, Fisher showed that normally distributed heritable traits are polygenic