Spermatogenesis involves which process?

Spermatogenesis involves which process?

• A. Meiosis I followed by meiosis II in males
• B. Mitosis only
• C. Spermatogonia migrate to uterus
• D. Oogenesis occurs

Answer: (A)

Spermatogenesis relies on meiotic divisions to produce haploid sperm. In the testes, germ cells first proliferate by mitosis to form primary spermatocytes. Each primary spermatocyte then undergoes meiosis I to create two haploid secondary spermatocytes, which proceed through meiosis II to yield haploid spermatids. These spermatids then undergo spermiogenesis to become mature spermatozoa. Therefore, the process involves two sequential meiotic divisions in males, not mitosis alone, and it occurs in the male reproductive tract. Oogenesis is the female process of egg formation, and spermatogonia migration to the uterus is not part of this process.

Spermatogenesis relies on meiotic divisions to produce haploid sperm. In the testes, germ cells first proliferate by mitosis to form primary spermatocytes. Each primary spermatocyte then undergoes meiosis I to create two haploid secondary spermatocytes, which proceed through meiosis II to yield haploid spermatids. These spermatids then undergo spermiogenesis to become mature spermatozoa. Therefore, the process involves two sequential meiotic divisions in males, not mitosis alone, and it occurs in the male reproductive tract. Oogenesis is the female process of egg formation, and spermatogonia migration to the uterus is not part of this process.