The Stages of Cell Division BY: MARK DESILVA Prophase/ Pro Metaphase Metaphase The Stages of Mitosis Anaphase Telophase Prophase/ Prometaphase • Chromatin condenses into dicrete Chromosomes • Nucleoli disappear • Chromosomes have the two identical sister chromatids • Mitotic Spindle begins to form • The Centrosomes move away from each other • Nuclear Envelope fragments • Chromosomes become more condensed Prophase Pictures Metaphase • Centrosomes are apposite poles of the cell • Chromosomes are at the metaphase plate, that is equidistant between the spindle’s two poles • For each chromosome the kinetochores of the sister chromatids are attached to kinetochore microtubules coming from opposite poles Metaphase Pictures Anaphase • Shortest Stage of mitosis and only lasts a few minutes • Begins when the cohesin proteins are cleaved, allowing the two sister chromatids to part • The daughter chromosomes begin moving toward opposite ends of the cell • The cell becomes longer and the microtubules lengthen • Both ends of the cell have a complete set of chromosomes Anaphase Pictures Telophase • Two daughter nuclei form • Nucleoli reappear • Chromosomes become less dense • Any remaining spindle microtubules are depolymerized • The Division of one nucleus into two genetically identical nuclei is now complete Telophase Pictures Works Cited http://www.phschool.com/science/biology_place/labbench/lab3/pro phase.html http://www.macroevolution.net/metaphase.html http://www.phschool.com/science/biology_place/labbench/lab3/ana phase.html https://www.studyblue.com/notes/note/n/cellularreproduction/deck/4432255 Works Cited Continued https://dj003.k12.sd.us/school%20notes/chapter_02.htm http://faculty.ccbcmd.edu/~gkaiser/biotutorials/dna/mitosis/pcprophaseB.html http://faculty.ccbcmd.edu/~gkaiser/biotutorials/dna/mitosis/pcmetaphase.html https://dj003.k12.sd.us/school%20notes/chapter_02.htm http://www.quia.com/jg/1919826list.html http://faculty.ccbcmd.edu/~gkaiser/biotutorials/dna/mitosis/pcanaphaseA.html http://jacusers.johnabbott.qc.ca/~biology/NYA/labs/NYALAB4/ https://www.studyblue.com/notes/note/n/mitosis-cell-cycle-stem-cells-and-cancer/deck/1414560