| 41. | Instead, speciation results from the evolution of mechanisms that reduce gene flow between the two populations.
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| 42. | New and even homogenizing effects of gene flow.
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| 43. | There are a number of factors that affect the rate of gene flow between different populations.
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| 44. | Our data suggest that this shift was not accompanied by large amounts of Afroasiatic16 gene flow.
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| 45. | A barrier to gene flow exists from South to North as a result of the female preference.
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| 46. | It is however possible that restricted gene flow could reduce genetic diversity within populations that become isolated.
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| 47. | "We are concerned about gene flow, " said U . S . Agriculture Department spokeswoman Meghan Thomas.
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| 48. | That means there is no gene flow,
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| 49. | As far as distinct lineages, throughout history, we have had too much gene flow between so-called races.
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| 50. | The study result suggests gene flow between Ethiopia and Yemen as a possible explanation for the closeness.
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