Читать книгу Infants and Children in Context - Tara L. Kuther - Страница 100

Whereas dominant–recessive and codominant–recessive patterns account for some genotypes, most traits are a function of the interaction of many genes, known as polygenic inheritance. Hereditary influences act in complex ways, and researchers cannot trace most characteristics to only one or two genes. Instead, polygenic traits are the result of interactions among many genes. Examples of polygenic traits include height, intelligence, personality, and susceptibility to certain forms of cancer (Bouchard, 2014; Kremen, Panizzon, & Cannon, 2016; Penke & Jokela, 2016). As the number of genes that contribute to a trait increases, so does the range of possible traits. Genetic propensities interact with environmental influences to produce a wide range of individual differences in human traits.