Recent progress in genetics has developed polygenic predictors of complex human traits, including risk for many important complex diseases[10][11] that are typically affected by many genetic variants, each of which confers a small effect on overall risk.[12][13] In a polygenic risk predictor the lifetime (or age-range) risk for the disease is a numerical function captured by the score which depends on the states of thousands of individual genetic variants (i.e., single-nucleotide polymorphisms, or SNPs).
— Read on en.m.wikipedia.org/wiki/Polygenic_score
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