| 31. | In contrast, for societies which did not engage in pastoral behaviors, no selective advantage exists for lactase persistence.
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| 32. | An allele is subject to negative frequency dependent selection if a rare allelic variant has a selective advantage.
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| 33. | It's a highly selective advantage, however.
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| 34. | It has been hypothesized that mutations in the CFTR gene may confer a selective advantage to heterozygous individuals.
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| 35. | This accounts for the persistence of the allele in certain populations in that it confers a selective advantage.
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| 36. | But, he said, " I think the burden is on the selectionists to produce the selective advantage ."
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| 37. | The introduction of an individual possessing an allele with a selective advantage corresponds to X _ 0 = 1.
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| 38. | The acquisition of mutations is random as a result of increased selective advantage during certain stages of tumour progression.
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| 39. | If MLH1 is epigenetically reduced or silenced, it would not likely confer a selective advantage upon a stem cell.
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| 40. | The selective advantage of complementation may largely account for the general avoidance of inbreeding ( see Kin recognition ).
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