Mitosis--which is a continuous process occurring in five stages: prophase, prometaphase, metaphase, anaphase, and telophase--is the anatomy of the nucleus. During prophase, changes occur in the cytoplasm and the nucleus of the cadre. Basically, in the nucleus, chromatin fibers become more tightly coiled-up, condensing into discrete chromosomes. Also, the nucleoli disappear. distributively duplicated chromosome appears as dickens identical infant chromatids join together. Mitotic pinna begins to anatomy in cytoplasm (it is made of microtubules radiating from devil centrosomes). Next is prometaphase, where the nuclear envelope surrounding the nucleus fragments. Bundles of microtubules contribute from each pole toward middle of kiosk. Kinetochore develops in kinetochore region of chromosomes. In metaphase, centrosomes are at opposite ends of the poles of the cell; the chromosomes meet on the metaphase plate. For each chromosome, the kinetochores of the child chromatids are habituated to microtubules coming from opposite poles of the cell. Entire apparatus of microtubules = spindle.
In anaphase, sister chromatids separate from each other and move toward opposite ends of the cell, as their kinetochore microtubules shorten. Thus, the two poles of the cell have equivalent and unload collections of chromosomes. Lastly, in telophase, nonkinetochore microtubules elongate the cell still more, and daughter nuclei fashion model at the two poles of the cell. Nuclear envelopes arise from fragments. Mitosis--the equal section of one nucleus into two genetically identical nuclei--is in conclusion complete. ! If you want to get a full essay, modulate it on our website: OrderCustomPaper.com
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