____ are genetic changes that result in new phenotypes that can be harmful or even fatal.

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Mutations are genetic changes that can cause harm or even death by altering the normal function of genes. Selective breedings involves the intentional mating of organisms with specific desired traits, while polygenic traits are controlled by multiple genes and adoption designs are research methods used to study the effects of environment and genetics on behavior.

____ Are Genetic Changes That Result in New Phenotypes That