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प्रश्न
How is 'oogenesis' markedly different from 'spermatogenesis' with respect to the growth till puberty in the humans?
उत्तर
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Spermatogenesis
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Oogenesis
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It is the process by which sperms are formed from the sperm mother cell in males
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It is the process by which ovum is formed from the oogonia in females
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After the second meiotic divisions in a single spermatogonium, 4 spermatids are obtained, which undergo maturation to form 4 sperm cells, or spermatozoa
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After the second meiotic divisions in the single oogonium, only one ovum and three polar bodies are obtained.
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Spermatogenesis occurs in males from puberty almost until death.
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In females, oogenesis starts before birth and occurs until menopause.
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