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Category of cell division that permits sexual reproduction

Name the category of cell division which permits sexual reproduction? Also explain gametogenesis?

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Meiosis is the kind of cell division which permits sexual reproduction as it reduces to a half the total number of chromosomes of the species making potential the combination of two gametes to create a new individual. (In several beings meiosis makes haploid gametophytes which through mitosis produce gametes. Still in that situation the function of meiosis is the similar: to provide cells with half of the total number of chromosomes of the species with separation of the homologous.)  Gametogenesis, it is the name given to the procedure of gamete production.

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