Between which stages does the assortment of maternal and paternal chro...
Assortment of Maternal and Paternal Chromosomes during Spermatogenesis
During spermatogenesis, the process of formation of mature sperm cells, the assortment of maternal and paternal chromosomes takes place between the primary spermatocyte and secondary spermatocyte stages. Let us understand the process in detail.
Spermatogenesis Stages
Spermatogenesis is a complex process that involves several stages, which are:
1. Spermatogonium: It is the diploid cell that divides by mitosis to form two identical daughter cells.
2. Primary Spermatocyte: It is the cell that is formed after the division of spermatogonium. It undergoes meiosis I to produce two haploid secondary spermatocytes.
3. Secondary Spermatocyte: It is the cell that is formed after the meiosis I division of primary spermatocyte. It undergoes meiosis II to produce four haploid spermatids.
4. Spermatids: They are the immature sperm cells that undergo further maturation to form mature sperm cells.
Assortment of Maternal and Paternal Chromosomes
During the meiosis I division of primary spermatocyte, homologous chromosomes pair up and exchange genetic material through a process called crossing over. This results in the shuffling of maternal and paternal genes, leading to genetic diversity in the offspring.
The paired homologous chromosomes then separate, and each cell receives one chromosome from each pair, leading to the formation of two haploid secondary spermatocytes. These secondary spermatocytes undergo meiosis II to form four haploid spermatids.
Therefore, the assortment of maternal and paternal chromosomes takes place between the primary spermatocyte and secondary spermatocyte stages during spermatogenesis.
Conclusion
Spermatogenesis is a complex process that involves several stages. The assortment of maternal and paternal chromosomes takes place during the meiosis I division of primary spermatocyte, leading to genetic diversity in the offspring.
Between which stages does the assortment of maternal and paternal chro...
Law of assortment / purity of gamets is applicable during meiosis 1 As meiosis 1 takes primary spermatocyte(meiocyte)
ans is c
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