The acrosome is an enzyme-filled vesicle at the tip of the head of the spermatozoon that enables the sperm to penetrate the ovum.
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Q125: A high local concentration of testosterone within
Q126: Testosterone promotes closure of the epiphyseal plate.
Q127: The release of GnRH inhibits the secretion
Q128: Inhibin is produced by the Sertoli cells
Q129: The secondary oocyte normally has a diploid
Q131: The scrotal location of the testes provides
Q133: The sperm's genetic information is located in
Q134: Several hundred million sperm may reach maturity
Q139: The Sertoli cells provide nourishment for the
Q140: The developing sperm cells arising from a
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