The transfer of genes by a mechanism not involving asexual reproduction is called:
meiosis
web of life
horizontal gene transfer
gene fusion

horizontal gene transfer

Explanation:

Horizontal gene transfer  is the exchange of genetic material between cells or genomes of unrelated species, occurring in prokaryotes through conjugation, transduction, and especially transformation. Although described since 1928, the impacts of horizontal gene transfer on prokaryote evolution have only been well established recently through the complete sequencing of bacterial genomes and through laboratory experiments with model organisms.

Horizontal gene transfer  is a mechanism of genetic exchange that does not involve asexual reproduction.

it takes hundreds of years to become stable.

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