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TEORIA GEN EGOISTA [2 records]
Record 1 - internal organization data 2012-07-09
Record 1, English
Record 1, Subject field(s)
- Genetics
Record 1, Main entry term, English
- selfish gene theory
1, record 1, English, selfish%20gene%20theory
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- theory of the selfish gene 2, record 1, English, theory%20of%20the%20selfish%20gene
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Adaptation is conventionally regarded as occurring at the level of theindividual organism. In contrast, the theory of the selfish gene proposes that it is more correct to view adaptation as occurring at the level of the gene. 2, record 1, English, - selfish%20gene%20theory
Record 1, French
Record 1, Domaine(s)
- Génétique
Record 1, Main entry term, French
- théorie du gène égoïste
1, record 1, French, th%C3%A9orie%20du%20g%C3%A8ne%20%C3%A9go%C3%AFste
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La théorie du gène égoïste de Richard Dawkins et Georges Willials apparait diamétralement à l’opposé de la sélection hiérarchique défendue par Gould : elle propose que les entités réellement sélectionnées, les véritables cibles de la sélection naturelle, sont les gènes et non les organismes. Ainsi, les organismes ne servent que de véhicules transitoires aux gènes. 1, record 1, French, - th%C3%A9orie%20du%20g%C3%A8ne%20%C3%A9go%C3%AFste
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Genética
Record 1, Main entry term, Spanish
- teoría del gen egoísta
1, record 1, Spanish, teor%C3%ADa%20del%20gen%20ego%C3%ADsta
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 CONT
Según la teoría del gen egoísta, el gen es la unidad evolutiva fundamental. [...] La teoría de Dawkins establece que son los genes —y no los individuos— los agentes sobre los que opera la evolución. [...]El egoísmo constituye una metáfora con la que Dawkins explica que la probabilidad de que un gen prospere depende de su capacidad de adecuación al medio. Los organismos son, pues, meras máquinas de supervivencia para genes. Un gen de un organismo sigue existiendo si dicho ser se reproduce. Y, puesto que los genes son la base de la herencia en la reproducción sexual, los genes que proporcionen ventajas reproductivas para el individuo al que pertenezcan los alelos tenderán a ser heredados por un número cada vez mayor de individuos. 1, record 1, Spanish, - teor%C3%ADa%20del%20gen%20ego%C3%ADsta
Record 2 - internal organization data 2012-06-08
Record 2, English
Record 2, Subject field(s)
- Genetics
Record 2, Main entry term, English
- selfish gene
1, record 2, English, selfish%20gene
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Selfish genes are parasitic sequences of DNA that increase their own frequency in a population, usually to the detriment of the organisms that carry them. Although most genes can prosper only by contributing to the well-being of their bearers, there are certain times in the life cycle of an organism when genetic elements can potentially cheat and gain a transmission advantage. ... Some genes cheat by inserting extra copies of themselves into cells; some cripple or obliterate their genetic counterparts on other chromosomes. A few can even change the sex of their host so that it produces only eggs or sperm favorable to the gene's distribution. Virtually all species, including humans, harbor at least some selfish genes. 1, record 2, English, - selfish%20gene
Record 2, French
Record 2, Domaine(s)
- Génétique
Record 2, Main entry term, French
- gène égoïste
1, record 2, French, g%C3%A8ne%20%C3%A9go%C3%AFste
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Dans la théorie du gène égoïste, on considère que l’unité de base des êtres vivants est le gène, ou une séquence génétique. La finalité du gène est de se multiplier. Pour se reproduire, il s’associe avec d’autres gènes d’une façon temporaire ou définitive, en fonction de son intérêt. [...] Certains gènes peuvent être en plusieurs copies dans un organisme. Certains peuvent aller se joindre à un organisme différent de celui dont ils sont issus. Un organisme peut être parasité par des gènes qui ne lui sont pas utiles, mais il peut aussi se débarrasser de gènes qui ne lui sont d’aucune utilité. 2, record 2, French, - g%C3%A8ne%20%C3%A9go%C3%AFste
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Genética
Record 2, Main entry term, Spanish
- gen egoísta
1, record 2, Spanish, gen%20ego%C3%ADsta
correct, masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 CONT
[...] la teoría del "gen egoísta" afirma que los genes compiten entre sí para asegurarse la supremacía de unos sobre otros. 1, record 2, Spanish, - gen%20ego%C3%ADsta
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