| 31. | The Fitzgeralds found themselves victims of " genetic drift, " a relatively new and disturbing phenomenon.
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| 32. | Isolation can induce allopatric speciation usually through genetic drift, and different environments induce different evolutionary pressures.
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| 33. | Genetic drift refers to random effects resulting from chance variation in the genes, environment, or development.
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| 34. | Due to genetic drift, they are a separate species from either baseline humans or mutant humans.
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| 35. | The precise role of, say, genetic drift in this process thus is largely speculative at present.
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| 36. | This process seems to be dominated by genetic drift resulting from small selection for smaller genomes.
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| 37. | Variation mechanisms such as mutations, genetic drift, and genetic flow have been studied and documented thoroughly.
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| 38. | However, the isolated populations are also affected by genetic drift resulting in a decline in their societies.
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| 39. | First, smaller ( founder ) populations experience greater genetic drift because of increased fluctuations in neutral polymorphisms.
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| 40. | Genetic drift will result in them having different allele proportions from the population they split off from.
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