Through which reproductive process does major sperm cell production occur after puberty?

The production of major sperm cells after puberty occurs through spermatogenesis, which is the process by which male gametes, or spermatozoa, are produced within the seminiferous tubules of the testes. This process is initiated with the division of spermatogonial stem cells, which undergo mitotic divisions to produce primary spermatocytes. These primary spermatocytes then enter meiosis, where they undergo two successive divisions—meiosis I and meiosis II—resulting in four haploid spermatids from each primary spermatocyte.

Spermatogenesis is crucial as it ensures a continuous supply of sperm cells in males throughout their reproductive years, beginning at puberty and typically continuing throughout life. It is regulated by hormones such as testosterone and follicle-stimulating hormone (FSH), which play key roles in stimulating the process and ensuring the maturation of sperm.

In contrast, oogenesis is the process of egg (ovum) development in females and occurs primarily before birth and during the menstrual cycle after puberty, but it does not pertain to sperm cell production. Fertilization is the union of sperm and egg to form a zygote, which also does not relate to the production of sperm cells. Thus, spermat