Selective Breeding And Its Effect On Human Behavior

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Selective breeding has been used for many years to achieve the expression of desired traits in animals and plants. Similar to natural selection, humans have developed artificial selection where humans select the most desirable traits instead of the environment, this is what’s known as selective breeding. But in fact selective breeding does not select for the fittest phenotype like in natural selection it actually selects for the most desirable phenotypes which may cause harm to the individual.
Natural selection selects against harmful alleles as they are disadvantageous to the individual and possibly restricts its ability to survive till the age of sexual reproduction thus not being able to pass on this harmful gene, whereas selective breeding selects for harmful alleles if seen desirable.
Selective breeding involves breeding organisms based on their phenotypes so that the desired traits are passed onto successive generations, these desired alleles then increase (in frequency) in the gene pool. This has a large commercial benefit as animal and crop products now contain higher quality meat, quantity of milk, quality of wool, larger fruits etc.
The goal of selective breeding in animals is to either produce a pure breed (a breed that will consistently produce offspring with the desired traits or to simply improve the quality of the desired trait/phenotype (homozygous). This is achieved by inbreeding (where two closely related individuals mate and produce offspring)
In selective

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