3/24/2023 0 Comments Prophase 1 picture![]() Nuclear membrane disappears completely making the chromosomes free in the cytoplasm. During synapsis, homologous chromosomes exchange genetic material between one another. Chromosomes may become coiled around each other and their chromatids may remain in contact at points called chiasmata. As prophase progresses, homologous chromosomes lie side by side and become intertwined rather like a zipper forming pairs called bivalents in a process called synapsis. This stage is manifested by the chromosomes becoming visible as distinct bodies as they get shorter and thicker and centrioles become arranged at opposite sides of the nucleus. There is also a build up of energy to be used up in the meiotic process. Another important process that takes place is the formation of new cellular organelles. The chromosomes are not visible as discrete structures but instead, they appear as a diffuse tangle of threads called chromatin. One of the most important processes in this stage is chromosomal replication in which each chromosome produces an exact copy or replica of itself. Here are list of stages of meiosis 1 and meiosis 2 as below:ĭiscover What Occurs During the Meiosis Stages Meiosis 1 Phases ![]() Each stage is followed by 1 or 2 indicating whether it belongs to meiosis 1 or 2. Each of the two meiotic divisions is divided into interphase, prophase, metaphase, anaphase and telophase. Meiosis 2 results in separation the sister chromatids and for this reason, it is known as equatorial division. In meiosis 1, the number of chromosomes is reduced by one-half and for this reason, it is called reduction division. It consists of two successive divisions which are meiosis 1 and meiosis 2. Meiosis is the type of cell division that is seen during the formation of gametes (sex cells).
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