As a result of which process do DNA strands exchange regions?

The exchange of DNA strands occurs during sexual reproduction, when one organism transfers its genetic material to the second. Man, like all eukaryotes, has DNA chains in the form of complexly packed systems – chromosomes. This ensures the reliability of information transfer and prevents the possibility of accidental loss of information or damage to it. The process of exchanging parts of the chain is very complex and to explain it, you need to use many chemical formulas, since DNA is a macromolecule and the reactions there are very complex.