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Genetics and the diversity of behavior

Dobzhansky, Theodosius

The American psychologist, 1972-06, Vol.27 (6), p.523-530 [Periódico revisado por pares]

United States: American Psychological Association

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  • Título:
    Genetics and the diversity of behavior
  • Autor: Dobzhansky, Theodosius
  • Assuntos: Animals ; Diversity ; Drosophila ; Genetics ; Genetics, Behavioral ; Genotype ; Human ; Humans ; Psychological Development ; Selection, Genetic ; Social Sciences
  • É parte de: The American psychologist, 1972-06, Vol.27 (6), p.523-530
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
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  • Descrição: Genetic fixity and developmental rigidity of behavior may be advantageous where the environment is uniform in space and stable in time, and in organisms with short life spans with little or no opportunity for learning. A Drosophila fly hatching from a pupa must "know" how to find food and a mate, perform the often quite elaborate rituals of courtship and copulation, and locate a proper place to deposit its eggs, all with little or no opportunity to observe other conspecific individuals. Innate drives and releaser mechanisms are required to perform these tasks satisfactorily. In contrast, adaptation by cultural change in man is vastly more efficacious than adaptation by genetic change. Genetic "inventions," produced by mutation or gene recombination, can be transmitted only to direct descendants of the organism in which these "inventions" 1st appeared. Since new ideas and human inventions are under no such limitation, human adaptation by learned behavior is ineluctably displacing that by genetic fixation. The displacement probably began at least 2,000,000 yr. ago and is still an ongoing process.
  • Editor: United States: American Psychological Association
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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