Final answer:
Replicative transposition involves the recombination of transposons and their inverted repeat sequences, enabled by the action of the enzyme transposase, resulting in the transposon being copied to a new site in the genome.
Step-by-step explanation:
Replicative transposition involves recombination between specific genetic elements known as transposons (or transposable elements) and their inverted repeat sequences. This process is facilitated by an enzyme called transposase, which catalyzes the transposon's excision from its original location and integrates it into a new location within the genome. Recombination during replicative transposition results in a copy of the transposon at a new insertion site while retaining the original transposon at the donor site, thus leading to an increase in the copy number of the transposon within the genome.
This mechanism can significantly contribute to genetic diversity and is found across different types of organisms, including both prokaryotes and eukaryotes.