Poligénicas

Poligénicas refers to traits or characteristics that are influenced by multiple genes acting together. These genes, often referred to as polygenes, typically have small additive effects on the phenotype. Unlike traits determined by a single gene with distinct alleles, polygenic traits exhibit continuous variation within a population, meaning they can take on a wide range of values rather than discrete categories. Examples of polygenic traits in humans include height, skin color, weight, and intelligence. Environmental factors also commonly interact with these genes to further shape the final phenotype.

The study of polygenic inheritance is complex because it involves the combined action of many genetic loci. Statistical methods are often employed to analyze the inheritance patterns of such traits. While individual genes contributing to a polygenic trait may have minor impacts, their cumulative effect can be substantial. Understanding polygenic inheritance is crucial in fields like genetics, breeding, and medicine, as it helps explain the diversity observed in many biological characteristics and the inheritance of complex diseases.