What are the three addítional sources of genetic variation within sexually reproducing populations?

What are the three addítional sources of genetic variation within sexually reproducing populations? Briefly describe how each contributes to genetic variation?

Expert Solution

The three additional sources are:

–Independent assortment of homologous chromosomes during meiosis I and of nonidentical sister chromatids during meiosis II.- When the assortment of chromosomes occurs be it in Meiosis I or II it leads to a genetic variation as the assortment leads to a change in the natural combination of Chromosomes, which leads to random orientation of the tetrads.

–Crossing over between homologous chromosomes during prophase I.- Similar explanation as above.

–Random fertilization of an ovum by a sperm.- Fertilization is random in nature which leads to an additional reason and attribution of genetic variation.,

gladiator answered 2 years ago

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