Sexual reproduction in eukaryotes increases genetic variation. In prokaryotes, transformation, transduction, and conjugation are mechanisms that increase genetic variation. A fundamental difference between the generation of genetic variation in the two domains is .

Eukaryotic genetic variation occurs with VERTICAL gene transfer while prokaryotic genetic variation occurs with HORIZONTAL gene transfer

Explanation:

In Eukaryotes, genes lays on top of each since they reproduce sexually this gives rise to their genetic variation and hence the vertical gene transfer, but prokaryotes lie side by side, reproducing by conjugation, transformation and transduction. This makes their genetic variation to be horizontal.

Example is conjugation in Spirogyra.

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