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In this video we will see the two major cell divisions: mitosis and meiosis. We will see how chromosomes are positioned in the cell to allow their distribution. We will follow the evolution of the quantity of DNA in the nucleus and see that during the human life cycle we have haploid phases and diploid phases. ???? Visit us on the site: https://mathrix.fr/ ???? Subscribe: http://tinyurl.com/kx99x2n ???? Instagram @MathrixVideos (stories & lives) ???? Snapchat MathrixVideos (stories) ???? Twitter / mathrixvideos ???? Facebook https://www.fb.me/mathrix.fr