Genetic determinism
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High Quality Content by WIKIPEDIA articles! Genetic determinism is the belief that genes determine physical and behavioral phenotypes. It is usually taken to mean "that the genotype completely determines the phenotype, that is, the genes completely determine how an organism turns out" or that "genes alone determine human traits and behaviours." The term may be applied to the mapping of a single gene to a single phenotype, or more widely to the discredited belief that most or all phenotypes are determined exclusively by genes. While it is well established that most phenotypic variability is str...
High Quality Content by WIKIPEDIA articles! Genetic determinism is the belief that genes determine physical and behavioral phenotypes. It is usually taken to mean "that the genotype completely determines the phenotype, that is, the genes completely determine how an organism turns out" or that "genes alone determine human traits and behaviours." The term may be applied to the mapping of a single gene to a single phenotype, or more widely to the discredited belief that most or all phenotypes are determined exclusively by genes. While it is well established that most phenotypic variability is strongly influenced by genes, it is clear that environment also plays an important role and that epigenetic mechanisms of inheritance also exist. The idea that an organism's morphology and instincts are genetically determined can be traced back to Austrian theorist August Weismann, who proposed in the 1890s that the key actors in the struggle for survival are not organisms but their genes, which he called determinants. While Darwinu2019s concept of natural selection was intended to apply to whole organisms, Weismann modified Darwin's idea according to a process he called "germinal selection."
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