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Mitosis And Meiosis Similarities

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Mitosis and Meiosis
Both mitosis and meiosis play key roles in the life cycle of a cell. Infact, any living organism , including humans, cannot even live without the microscopic cells inside of them. But how do the cells get there? The answer is mitosis and meiosis. These two important processes have many similarities, but they also show many distinct differences. These similarities and differences have a great impact on how the cell reproduces.
There are many similarities between them, and here are a few key similarities. First of all, both mitosis and meiosis are forms of reproduction, and in the end both will end up making new cells. Also, they both occur in the human body, which is really interesting because a person has all that going on in trillions of cells all at one time. Another thing that they have in common is that in both processes, cytokinesis occurs. Yet another similarity in these two reproduction forms, is that chromatids are split in both. Additionally, for both to occur, centrioles are needed. These similarities show how these processes are alike, but there is also many distinct differences. …show more content…

A very major difference is that mitosis is asexual reproduction, and meiosis is sexual reproduction. This leads to mitosis only being able to be used by body cells, and meiosis can be used by sex cells. Furthermore, in the end, there will even be a different number of cells made for each one, with mitosis ending in two cells and meiosis ending in four cells. To get to the end product of new cells, mitosis takes six steps, while meiosis takes only four steps, which are shown in these two graphs, with mitosis on the right and meiosis on the

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The sister chromatids line up alone the equatorial line. During anaphase II, each sister chromatid begins to move to its respective pole thus the pairs begin to separate. In telophase II, the sister chromatids reach their respective poles. Cytokinesis takes place, and the nuclear envelope becomes visible, resulting in four haploid

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During random fertilization, no gamete has a greater chance than the other with fusing together in sperm and zygote fusion. These processes contribute to the production of genetic variety because of the many opportunities of unique combinations, unlike the process of mitosis, in which identical daughter cells are always the

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During the first cycle of replication in meiosis, Prophase is the same but crossing over occurs along side of the nuclear membrane dissolving, chromosomes developing, and the spindle fibers forming. Crossing over is the process in which homologous chromosomes from both parents pair up and exchange DNA. Also during metaphase and anaphase homologous chromosomes are separated and pulled to opposite sides. During this second cycle of replication the cells grows through Prophase II, Metaphase II, Anaphase II, Telophase II, and its final cycle of cytokinesis which is the exact same as during mitosis. I will play a quick review of this process.

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• Meio'is lead< to independent a,o,tnoent of chromo,ome< a9":f!.compo,ition of alleles in daughter eel/, o Chromosomes replicate in interphase before meiosis • Interphase: · • Active period that precedes meiosis and includes preparation for cell division . • DNA replicated in the "S" Phase of interphase • This results in chromosomes having two identical DNA strands • Genetically identical strands are called sister chromatids • Held together by a centromere located at the center • Chromatids separate during meiosis II • They become independent chromosomes with each one ofthem made of a single DNA strand • If DNA didn't take place before meiosis, there would be no need for 2nd meiotic division • Meiosis I: Diploid to haploid • DNA replication

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Introduction: This lab report outlines an experiment on the observation of mitosis in the cells of garlic root tips. Mitosis simply put is the division of a nucleus producing two daughter cells with the same number of chromosomes as the parent cell. Miotic cell division consists of five stages: Interphase, Prophase, Metaphase, Anaphase and Telophase. The purpose of this experimet was to identify and observe cells within each stage of mitosis using garlic root tip cells.

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Each of these daughter cells end up with the same genetic information as the parent cell. Mitosis is the foundation of asexual reproduction in many organisms. (University of Leicester,2014) During the course of this investigation, Köhler illumination was used which made it possible to follow the chromosomes progressing from prophase through to telophase as all the stages were found to occur in close proximity to each other. There are four stages of mitosis which collectively take approximately an hour to complete.

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