Presentation on theme: "Telophase is a phase of mitosis"— Presentation transcript:
1 Telophase is a phase of mitosis and the other three are phases of interphaseInterphase is a phase of the cell cycleand the other three are phases of mitosisBinary fission pertains to prokaryotesand the other three pertain to eukaryotesSpindle fiber pertains to nucleardivision and the other three pertain to cytoplasmic divisionVesicles are organelles but are notdirectly involved with nuclear division as are the other three
3 1) G1: cell grows2) S: DNA is replicated3) G2: cell prepares for cell division4) Mitosis: nucleus divides5) Cytokinesis: cytoplasm divides
4 1) Prophase: chromatin coils into replicated chromosomes; centrosomes start to move and generate spindle fibers(Prometaphase/Late Prophase: nuclear envelope breaks up;spindle fibers attach to kinetochores)2) Metaphase: spindle fibers align replicated chromosomes atcell equator3) Anaphase: spindle fibers retract, pulling apart sisterchromatids at the centromere; individual chromosomes arepulled to opposite ends of the cells4) Telophase: spindle fibers disappear; nuclear envelope andnucleolus reform; individual chromosomes unwind tochromatin
5 Vesicles from the Golgi apparatus carrying cellulose fibers fuse at the midline of the cell to form the cell plate. These elongate and eventually become the new cell wall that separates the cell into two cells.Without a G1 growth phase, the cells would not grow to their mature size after cytokinesis. Therefore the daughter cells would become smaller and smaller with each cell cycle.