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These findings contribute to enhance the selectivebreeding programmes for this species.
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Only the permanently desired characters were actually intensified by private selectivebreeding.
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Eugenics is the science of improving the human race by selectivebreeding.
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Why, clearly, by the preservation, through selectivebreeding, of seemingly accidental variations.
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Biological sciences were rudimentary, but the general principle of selectivebreeding was known.
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Under artificialselection they are deliberately chosen out from among the rest.
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This is artificialselection, and is best exemplified in the experiments with pigeons.
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A day is coming when artificialselection among human beings will be obligatory.
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Through artificialselection, for example, breeders have changed the genomes of crops and livestock.
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Is there anything in Nature which in the long-run may answer to artificialselection?
Использование термина unnatural selection на английском
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Something akin to such a case of unnaturalselection has there taken place.
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Welcome to the age of " unnaturalselection".
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By a highly unnaturalselection, certain individuals become "lifers" -genetically modified humans who receive state-fundedtreatments to keep them alive for centuries.
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Audio Photo: Wikipedia 8:30 Window on the World UnnaturalSelection.
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UnnaturalSelection (Pt 1) The Morepork swoops in and (in the words of Elvis Presley) finds himself caught in a trap.