Naturally occurring example of Nucleic Acid Recombination

Recombination is the principal mechanism through which variation is introduced into populations. For example, during meiosis, homologous chromosomes (one from each parent) become paired, and recombination, or crossing-over, takes place. The two DNA molecules are fragmented, and similar segments of the chromosome are shuffled to produce two new chromosomes, each being a mosaic of the originals. The pair separates so that each sperm or egg receives just one of the shuffled chromosomes. When sperm and egg fuse, the normal set of two copies of each chromosome is restored. There are two forms of recombination, general and site-specific (1).

Reference

1. Nucleic acid - Recombination [Internet]. Encyclopedia Britannica. 2019 [cited 7 December 2019]. Available from: https://www.britannica.com/science/nucleic-acid/Recombination

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