Freeresponse Meiosis

Free Response: miosis litotes is known as the component of sex cadres (gametes). meiosis occurs in organisms that re take a shit sexually. Meiosis is a type of electric electric cell discrepancy in which the chromosomes atomic number 18 non all in all re faild. Instead of extensive cell division, the chromosome number is halved so that these cells brook be used in sexual reproduction. The connection of ii sex cells sound out produce a cell with the full number of chromosomes. That cell will and then carry on to class in brand to create a delirious organism. Meiosis is sortd up into several stages, Meiosis I and Meiosis II. They are very to regular mitosis, but quaternity cells are produced instead of the 2 by normal cell division. In Meiosis I, the homologous rivals in a diploid cell separate to produce twain haploid cells. monoploid cells are cells with a exclusive set of chromosomes. The future(a) phase, prophase I, includes the homologous chromosomes pair and the crossing everyplace. Crossing over is a exercise where dickens chromosomes pair up and pound sections of their DNA. Matching regions on twin(a) chromosomes break and then reconnect to the new(prenominal) chromosomes, which allows for variations in genes. In metaphase I, homologous pairs of chromosomes move to the metaphase plate.

Microtubules appear from the centrioles and conquer the homologous pairs which then notation up in the plaza of the cell. Anaphase I is the next step, where the chromosomes are pulled apart by the microtubules from metaphase I. This forms two haploid sets of chromosomes. The kick the pailful step before the achieve separation of the cell is Telophase I. In this phase, the chromosomes reach the poles. The nuclear tissue layer forms around the two sets of chromosomes and cytokinesis occurs. Meiosis II now starts. The two haploid cells begin to divide again. In prophase II, the nucleoli and nuclear envelope start to disappear. Metaphase II is the akin as Metaphase I, where the chromosomes move to the centre of attention of the cell. In anaphase II, the chromosomes are reveal and the microtubules pull the...If you want to get a full essay, guild it on our website: Ordercustompaper.com

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