Which one of the following structures is haploid?
Correct answer: C. Secondary spermatocytes
- A. Spermatogonia
- B. Primary spermatocytes
- C. Secondary spermatocytes
- D. Sertoli cells
Explanation
Secondary spermatocytes are haploid cells resulting from the first meiotic division of primary spermatocytes. They undergo the second meiotic division to form spermatids.
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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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