Stages of Mitosis

Summary

This video shows the stages of a cell going through the process of mitosis. In the video, the cycle of mitosis starts off as the long threads in the DNA in the nucleus start to coil and replicate. This process is called interphase. The interphase process also prepares the cell for cell division. Next in the video, we look at how proteins grow from the migrating centrioles, forming spindles. The nuclear membrane of the cell disintegrates, and each spindle from each of the 2 centrioles attach themselves to a chromosome. This process is called prophase. After prophase, the chromosomes are assisted by protein fibers and move to the center of the cell. This process is called metaphase. Next, the spindles start to pull each chromatid towards different poles. During this process, some spindles push against each other, causing the cell to stretch. This process is called anaphase. And finally, we come to the process of telophase and cytokinesis. In telophase, the chromatids unwind and the nuclear membrane is reformed at each pole. In cytokinesis, the nuclei and cytoplasm separate creating 2 new cells. This is the whole process of mitosis.   

Relevance to Class     

We went through the mitosis theme recently in class when we were identifying which stages a cell was in during the process of mitosis. We learned the phases of mitosis: interphase, prophase, metaphase, anaphase, telophase, and cytokinesis. This video animates these phases and let us view the stages dynamically in contrast to how we saw them through the microscopes. Also, during the process of identifying the phases of mitosis a cell was in when we were doing the lab, we might have not been positively sure that we correctly identified the process the cell was in, and this video clarifies the processes and gives us a deeper look into each stage of mitosis.

Video Information

YouTube. Dir. Ppornelubio. YouTube. YouTube, 16 Oct. 2006. Web. 21 Oct. 2012.<http://www.youtube.com/watch?v=VlN7K1-9QB0>.