The an initial and longest phase of mitosis is prophase. During prophase, dyed condenses right into chromosomes, and also the nuclear envelope, or membrane, division down.

You are watching: Sister chromatids line up at the equator of the cell.


During metaphase, spindle fibers affix to the centromere of each pair that sister chromatids. The sister chromatids heat up at the equator, or center, that the cell. The spindle fibers ensure that sister chromatids will certainly separate and go to different daughter cells when the cell divides.
During anaphase, sisters chromatids separate and also the centromeres divide. The sister chromatids space pulled apart by the shortening of the spindle fibers. This is favor reeling in a fish by shortening the fishing line. One sister chromatid move to one pole the the cell, and the other sister chromatid move to the contrary pole. In ~ the finish of anaphase, every pole that the cell has a complete collection of chromosomes.
During telophase, the chromosomes begin to uncoil and type chromatin. This prepares the hereditary material because that directing the metabolic tasks of the new cells. The spindle additionally breaks down, and brand-new nuclear membranes form.
Cytokinesis is the final stage that cell department in eukaryotes and prokaryotes. Throughout cytokinesis, the cytoplasm splits in two and the cell divides.
Type the cell division in i m sorry the variety of chromosomes is diminished by half and four haploid cell result
The atom envelope starts to break down, and also the chromosomes condense. Centrioles start moving to the opposite poles of the cell, and a spindle starts to form. Importantly, homologous chromosomes pair up, i beg your pardon is unique to prophase I. In prophase that mitosis and meiosis II, homologous chromosomes execute not type pairs in this way.
Spindle fibers affix to the combine homologous chromosomes. The combine chromosomes heat up along the equator that the cell. This occurs only in metaphase I. In metaphase that mitosis and also meiosis II, it is sister chromatids the line up follow me the equator that the cell.
Spindle yarn shorten, and the chromosomes of each homologous pair begin to different from every other. One chromosome of each pair moves towards one pole the the cell, and the other chromosome moves toward the the contrary pole.
The spindle breaks down, and brand-new nuclear membrane form. The cytoplasm that the cell divides, and also two haploid daughter cell result. The daughter cell each have actually a arbitrarily assortment the chromosomes, through one from every homologous pair. Both daughter cells go on to meiosis II.
The nuclear envelope division down and also the spindle begins to type in each haploid daughter cabinet from meiosis I. The centrioles also start to separate.

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The spindle breaks down, and new nuclear membrane form. The cytoplasm ofeach cabinet divides, and also four haploid cell result. Each cell has a unique mix of chromosomes.
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