Quantitative Genetics and Quantitative Traits

Gregory Carey, 1998 (incomplete: 10/30/98) Quantitative Genetics - 1 Quantitative Genetics and Quantitative TraitsIntroductionIn the chapter on Mendel and Morgan, we saw how the transmission of genesfrom one generation to another follows precise mathematical formula. The traitsdiscussed in that chapter, however, were discrete Traits peas are either yellow or green,someone either has a disorder or does not have the disorder. But many behavioral traitsare not like these clear-cut, have-it-or-don t-have-it phenotypes. People vary from beingquite shy to very outgoing. But is shyness a discrete trait or merely a descriptiveadjective for one end of a continuous distribution? In this chapter, we will discuss thegenetics of Quantitative , continuously distributed us note first that Genetics has made important albeit not wellrecognized contributions to Quantitative methodology in the social sciences. Theconcept of regression was initially developed by Sir Francis Galton in his attempt topredict offspring s phenotypes from parental phenotypes; it was later expanded andsystematized by his colleague, Karl Pearson1, in the context of evolutionary theory.

Quantitative Genetics and Quantitative Traits Introduction In the chapter on Mendel and Morgan, we saw how the transmission of genes from one generation to another follows precise mathematical formula. The traits discussed in that chapter, however, were discrete traits—peas are either yellow or green, someone either has a disorder or does …

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  Introduction, Quantitative, Genetic, Quantitative genetics

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