Spermatocyte
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Spermatocytes are a type of male gametocyte in animals. They derive from immature germ cells called spermatogonia. They are found in the testis, in a structure known as the seminiferous tubules. There are two types of spermatocytes, primary and secondary spermatocytes. Primary and secondary spermatocytes are formed through the process of spermatocytogenesis.
Spermatogenesis as the cells progress from spermatogium, to primary spermatocytes, to secondary spermatocytes, to spermatids and to sperm.
Spermatogonia going through mitosis to form primary spermatocytes in Grasshopper testes.
Hormones produced by the Pituitary gland. GnRH is secreted by the hypothalamus, which induces anterior pituitary to produce FSH and LH upon puberty.
Wild-type spermatocyte progression compared to repro4 mutated spermatocytes.
Gametocyte
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A gametocyte is a eukaryotic germ cell that divides by mitosis into other gametocytes or by meiosis into gametids during gametogenesis. Male gametocytes are called spermatocytes, and female gametocytes are called oocytes.
Image: Aedes aegypti E A Goeldi 1905