Final answer:
In spermatogenesis, the end product of meiosis is mature sperm cells called spermatozoa, each with 23 chromosomes. The process includes a division of diploid cells into haploid spermatids which transform into spermatozoa through spermiogenesis.
Step-by-step explanation:
The end product of meiosis in spermatogenesis is spermatozoa, or formed sperm. Each sperm cell produced through this process has 23 chromosomes. The process starts with the mitosis of diploid spermatogonia, which have the full complement of 46 chromosomes. These cells then divide to form primary spermatocytes which undergo meiosis I, producing two secondary spermatocytes, each with 23 chromosomes. A second division, meiosis II, further divides these cells to produce four haploid spermatids. Finally, through a process known as spermiogenesis, these spermatids undergo physical changes to become mature spermatozoa, ready for fertilization.