blackbarbie7499 blackbarbie7499

11-05-2018
Biology

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Evolution and selection what mechanisms lead to changes in the diversity of species on earth?

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Diatonic254 Diatonic254

21-05-2018

The answer is genetic drift and genetic shift. The former occurs when small changes occur in the genotype of a population that accumulates over time and changes the allelic frequency of the population. The latter (genetic shift) occurs abruptly and is usually caused by a bottleneck effect.

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