A reciprocal exchange in which a pair of DNA with the same nucleotide sequence break and rejoin in a crossover is called __________ recombination.

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Homologous recombination involves a reciprocal exchange of genetic material between two homologous DNA molecules, usually during meiosis. The process requires the presence of DNA polymerase and special enzymes called recombinases, which facilitate the breaking and joining of DNA during the crossover event. Site-specific recombination, in contrast, involves the integration or excision of specific genetic elements at defined sites in the DNA. Replicative recombination refers to the copying of DNA during DNA replication, which can lead to mutations and genetic diversity. Therefore, the most appropriate choice for the question is homologous recombination.

A Reciprocal Exchange in Which a Pair of DNA with the Same