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jamarstand
25.06.2019 •
Biology
What does meiosis have to do with genetic diversity ?
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Ответ:
Crossing Over. During prophase of meiosis I, the double-chromatid homologous pairs of chromosomes cross over with each other and often exchange chromosome segments. This recombination creates genetic diversity by allowing genes from each parent to intermix, resulting in chromosomes with a different genetic complement.
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis(which reshuffles alleles within an organism's offspring).
Ответ:
For the second generation, this difference in phenotype and genotype will cause a clear genetic diversity. The same continues for the rest generation too.
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