Mitosis & Meiosis

Mitosis and meiosis have several similarities and differences. In mitosis, cells divide in four steps. First, they go through prophase. In prophase, the centrioles begin to posterior apart from each other toward pivotal poles and the nuclear tissue layer begins to breakup. In metaphase, chromosomes phone lineup at the equator of the cell, k right offn as the metaphase plate. In anaphase, the centromere that connects the chromatids splits and the chromatids separate from one another. The chromatids move toward opposite ends of the cell. In anaphase, the cell also starts to split in two, forming a divider furrow, the area where it pinched apart. In telophase, a nuclear tissue layer forms around each new cell, resulting in two little girl cells. The cytoplasm then begins to divide, called cytokinesis. The difference between mitosis and meiosis I is the pairing up of homologous chromosomes in a congeal to work called synapsis in meiosis I. Because of this, this dra stically changes the processes of meiosis. In prophase I of meiosis, the chromosomes go through synapsis, forming a tetrad. Everything else that happens in prophase happens. In metaphase I, the chromosomes line up at the equator of the cell, and, they stay in their homologous pairs. During anaphase I of meiosis, the centromeres do not divide. Instead, the homologous pairs separate with the entire replicated chromosome lamentable to the opposite poles of the cell.

In telophase I, the cell undergoes the same processes as telophase in mitosis. But, sort of of 23 homologous pairs of chromosomes, there are now 2 3 replicated chromosomes. Meiosis II is vir! tually the same at mitosis, but each cell has only 23 replicated chromosomes or else of 46. later on the cells go through telophase II, we are left hand with four haploid cells. You leave out spindle fibre formation, the differences between lay out and animal division, and crossing over. If you regard to get a copious essay, order it on our website: OrderCustomPaper.com

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