Which statement best describes spermatogenesis after puberty?

Which statement best describes spermatogenesis after puberty?

• A. It begins at birth.
• B. It occurs continuously since birth.
• C. It occurs continuously after puberty.
• D. It occurs only during adolescence.

Answer: (C)

Spermatogenesis after puberty is a continuous process of producing sperm in the testes. Once puberty begins, hormonal signals—especially testosterone driven by the hypothalamus-pituitary axis—activate the germ cells in the seminiferous tubules. The germ cells continually progress from spermatogonia to primary spermatocytes, undergo meiosis to form haploid spermatids, which then mature into spermatozoa with support from Sertoli cells. This cycle runs steadily throughout life, supplying sperm on a daily basis. It doesn’t start at birth, isn’t limited to adolescence, and isn’t confined to puberty alone—the ongoing production after puberty is the defining point.

Spermatogenesis after puberty is a continuous process of producing sperm in the testes. Once puberty begins, hormonal signals—especially testosterone driven by the hypothalamus-pituitary axis—activate the germ cells in the seminiferous tubules. The germ cells continually progress from spermatogonia to primary spermatocytes, undergo meiosis to form haploid spermatids, which then mature into spermatozoa with support from Sertoli cells. This cycle runs steadily throughout life, supplying sperm on a daily basis. It doesn’t start at birth, isn’t limited to adolescence, and isn’t confined to puberty alone—the ongoing production after puberty is the defining point.