Which one of the following differentiates directly into mature sperm?
Correct answer: D. Spermatid
- A. Primary spermatocyte
- B. Secondary spermatocyte
- C. Spermatogonia
- D. Spermatid
Explanation
Spermatids are haploid cells that result from the second meiotic division of secondary spermatocytes. They undergo a process called spermiogenesis, which involves extensive structural and morphological changes to transform into mature sperm.
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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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