Gametes are formed through a specialised type of cell division known as meiosis. Meiosis is a reductional division process that results in the production of haploid cells, each containing half the number of chromosomes as the parent cell. It occurs in the germline cells (eggs and sperm) of sexually reproducing organisms, including animals and plants. During meiosis, the chromosomal content is shuffled, leading to genetic diversity and the creation of unique haploid gametes.