4/11/2024 0 Comments What chromosomes occurs with scids![]() The behavior and organization of the chromosomes differ in each stage, which gives clues about the complexity of prophase I. Prophase I, in particular, occupies almost more than half the time taken for meiosis as it contains 5 substages: leptotene, zygotene, pachytene, diplotene, and diakinesis. ![]() meiosis I) is the most complicated part of the meiotic division. Each part consists of 4 phases ( prophase, metaphase, anaphase, and telophase), which is similar to mitosis by being comprised of four phases. The process of meiosis is divided into 2 parts, meiosis 1 and 2. Consequently, during fertilization when the two haploid cells fuse, the number of chromosomes in the produced cell is restored as somatic cells (each with 46 chromosomes). So the number of chromosomes in meiosis decreases to half. In the human body, the meiosis process takes place to decrease the number of chromosomes in a normal cell which is 46 chromosomes to 23 chromosomes in eggs and sperms. The main function of the meiotic division is the production of gametes (egg cells or sperm cells) or spores. Etymology: from Greek meiōsis, meioun (to diminish), from meiōn (less). Meiosisis a form of cell division in sexually reproducing organisms wherein two consecutive nuclear divisions (meiosis I and meiosis II) occur without the chromosomal replication in between, leading to the production of four haploid gametes, each containing one of every pair of homologous chromosomes (that is, with the maternal and paternal chromosomes being distributed randomly between the cells).
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