Mechanisms that Increase Genetic Variation

Mr. Andersen discusses genetic variation, highlighting its importance in natural selection and adaptation. He contrasts the lack of variation in the Habsburg dynasty due to inbreeding with mechanisms that maintain genetic diversity. In prokaryotes, genetic variation is achieved through horizontal gene transfer, including transformation, transduction, and conjugation. In eukaryotes, sexual reproduction introduces variation via crossing over, random assortment, and fertilization. The video emphasizes the significance of genetic diversity in both prokaryotes and eukaryotes.

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