Introduction:
Spermatogenesis is the process of producing mature spermatozoa from primordial germ cells. This process involves multiple stages of cell division and differentiation.

Meiotic Division:
Meiosis is a type of cell division that reduces the chromosome number by half. In spermatogenesis, meiosis occurs during the formation of spermatocytes. There are two stages of meiotic division:

1. Meiosis I: During this stage, the homologous chromosomes pair up and exchange genetic material in a process called crossing over. The cell then divides into two daughter cells, each with half the number of chromosomes as the original cell.

2. Meiosis II: This stage is similar to mitosis, where the sister chromatids separate and are distributed to each daughter cell. The end result of meiosis II is four haploid daughter cells, each with a unique combination of genetic material.

Formation of 100 Sperms:
Each meiotic division results in the formation of two daughter cells. In spermatogenesis, the primary spermatocyte undergoes meiosis I to form two secondary spermatocytes. Each secondary spermatocyte then undergoes meiosis II to form two spermatids. Therefore, each primary spermatocyte results in the formation of four spermatids.

To form 100 sperms, there would need to be 25 primary spermatocytes undergoing meiosis. Each of these primary spermatocytes would result in the formation of four spermatids, which would then differentiate into mature spermatozoa.

Conclusion:
In conclusion, the formation of 100 sperms requires 25 primary spermatocytes undergoing meiosis. Meiosis involves two stages of cell division, resulting in the formation of four haploid daughter cells from each primary spermatocyte.

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