What is the role of spermatogenesis in male fertility?

• A. Production of sperm cells
• B. Production of ova
• C. Development of the placenta
• D. Secretion of testosterone

Answer: (A)

Spermatogenesis is the production of mature sperm cells within the testes. It begins with germ cells in the seminiferous tubules that divide and differentiate through mitosis, then meiosis to halve the chromosome number, and finally spermiogenesis to shape the cells into functional spermatozoa. The result is haploid sperm capable of fertilizing an oocyte. This process is essential for male fertility because it provides the male gametes needed for conception and genetic contribution to the embryo. Hormonal signals like FSH and LH, and testosterone from the Leydig cells, regulate spermatogenesis, but the core role of spermatogenesis itself is to generate sperm. The other options describe related but different processes: ova production occurs in the ovaries, placenta development is a separate placental process, and testosterone secretion supports sperm production but is not the production of sperm itself.