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Unformatted text preview: Meiosis I, Meiosis II, and the maturation process each take approximately 16 days (48 days total). Males do not run out of sperm because mitosis precedes each meiosis. The diagram above shows that a spermatogonium divides by mitosis to produce a primary spermatocytes and a spermatogonium. Human males produce approximately1000 sperm per second (30 billion/year). Each ejaculation should contain 200 - 300 million sperm....
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