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Spermatocytogenesis
Division of stem cells leading to sperm / From Wikipedia, the free encyclopedia
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Spermatocytogenesis is the male form of gametocytogenesis and involves stem cells dividing to replace themselves and to produce a population of cells destined to become mature sperm.
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The stem cells involved are called spermatogonia and are a specific type of stem cell known as gametogonia.
Three functionally separate spermatogonial cell types are recognised on the basis of the appearance of the nuclei: type A dark spermatogonia (Ad), type A pale spermatogonia (Ap), and type B spermatogonia (B).