Biological production of sperm cells
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In the male it is the sperm and in the female it is the egg. Word origin : Gk, comb. Related forms: autosomal adjective. General Biology , 11th Edition. Louis, MO. In a rat, each germ cell has 21 genes.
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Human Reproductive System
Male and Female Reproductive Systems
Multicellular organisms contain a wide range of different cells. Every cell is specialised to perform its function as best as possible. There are many differences between different cells specialised for different functions. Cells may have different shapes , different contents or different numbers of an organelle. In order for a cell to become specialised , a process called Differentiation occurs, where unspecialised cells called Stem Cells produce cells with specialised structures. All multicellular organisms contain some form of Stem Cells. These are the cells that divide to replace damaged or old tissue , or new cells for growth.
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Sperm mitochondrial regulation in motility and fertility in horses
Sperm Cell Precursors In order to produce such a huge number of sperm , the tubules contain a very large and active population of dividing, self-sustaining germ cells , which are the cells that will become gametes. The germ cells that are found in the testes are called sperm atogonia. General Biology , 11th Edition. Louis, MO.
Gametogenesis, the production of sperm and eggs, takes place through the process of meiosis. Meiosis produces haploid cells with half of each pair of chromosomes normally found in diploid cells. The production of sperm is called spermatogenesis and the production of eggs is called oogenesis.