Meiosis is a type of cell division that produces gametes (sex cells), such as sperm and egg cells. During meiosis, there are two rounds of cell division, resulting in four daughter cells with half the number of chromosomes as the parent cell.

Genetic recombination occurs during prophase I of meiosis, specifically in a process called crossing over. Here's how it works:

1. Pairing of Homologous Chromosomes: Homologous chromosomes, which carry the same genes, pair up.

2. Crossing Over: The paired chromosomes exchange segments of DNA, resulting in the shuffling of genetic material between the chromosomes.

3. Separation of Homologous Chromosomes: The chromosomes separate, each carrying a mix of genetic material from both parents.

This exchange of genetic material during crossing over leads to the formation of new combinations of alleles (alternative forms of genes) on the chromosomes. This genetic diversity is crucial for evolution and adaptation.

Other processes that contribute to genetic recombination:

* Independent Assortment: During meiosis, the separation of homologous chromosomes into daughter cells is random, further increasing genetic diversity.

* Mutation: Changes in the DNA sequence can also introduce new genetic variations.

In summary, meiosis is the primary process responsible for genetic recombination, primarily through the mechanism of crossing over, which shuffles genetic material and creates new combinations of alleles.