Final answer:
To form haploid sperm cells, the diploid cells undergo meiosis, which includes two rounds (meiosis I and II) that produce four unique haploid spermatids, which then mature into spermatozoa through spermiogenesis.
Step-by-step explanation:
Formation of Haploid Sperm Cells through Meiosis :
The cells that divide to form sperm cells are initially diploid, containing two sets of chromosomes. To produce haploid sperm cells, these diploid cells must undergo a special type of cell division called meiosis. During meiosis, the chromosome number is halved, resulting in haploid cells with only one set of chromosomes. This process involves two consecutive rounds of division: meiosis I and meiosis II. The first division separates homologous chromosomes into two cells, and the second division separates the sister chromatids into individual chromosomes, which ultimately leads to the formation of four unique haploid sperm cells from each diploid cell. In the process of spermatogenesis, a diploid spermatogonium cell divides by mitosis to produce a primary spermatocyte. This primary spermatocyte then undergoes meiosis I to create two secondary spermatocytes, each with half the number of chromosomes. Following this, meiosis II further divides these cells, resulting in four spermatids. Through a final transformation known as spermiogenesis, spermatids mature into fully formed spermatozoa ready for fertilization.