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By: Anna-Grace Cary. Interphase www.emt.bu.edu www.microscopy- uk.org.uk Spends 90% of its life in this stage it’s the prep-stage DNA replicates or makes.

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Presentation on theme: "By: Anna-Grace Cary. Interphase www.emt.bu.edu www.microscopy- uk.org.uk Spends 90% of its life in this stage it’s the prep-stage DNA replicates or makes."— Presentation transcript:

1 By: Anna-Grace Cary

2 Interphase www.emt.bu.edu www.microscopy- uk.org.uk Spends 90% of its life in this stage it’s the prep-stage DNA replicates or makes an exact copy of itself Prepares the cell to divide Spends most of the time growing Definition- The cell cycle stage between nuclear divisions, when chromosomes are extended and functionally active. The metabolically active non- dividing stage of the cell cycle http://groups.molbiosci.northwestern.edu

3 Mitosis Division of the nucleus 4 phases: 1. Prophase 2. Metaphase 3. Anaphase 4. Telophase

4 Prophase www.cwinstead.com http://student.ccbcmd.edu/~gkaiser/bio tutorials/ Nuclear membrane & nucleol disappear Spindle fibers appear(ropes) Start to see duplicated chromosomes Definition-The first stage of cell division, before metaphase, during which the chromosomes become visible as paired chromatids and the nuclear envelope disappears www.dictionary.com

5 Metaphase Duplicated chromosomes move to the middle Sister chromatids on either side Definition-The second stage of cell division, between prophase and anaphase, during which the chromosomes become attached to the spindle fibers www.sparknotes.com www.microscopy.- uk.org.uk www.dictionary.com

6 Anaphase www.clker.com www.micro.magnet.fsu.edu Sister chromatids separate & move to opposite ends Each sister chromatids have the same information ad the other one Moves away Definition-The stage of meiotic or mitotic cell division in which the chromosomes move away from one another to opposite poles of the spindle www.dictionary.com

7 Telophase Two Nuclear membrane & nucleolus reappear Chromosomes loosen up & become chromatin Definition- The final phase of cell division, between anaphase and interphase, in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed www.blaclspvbiology.50megs.com www.sparknotes.com www.dictionary.com

8 Cytokinesis Division of cytoplasm Always moving to the next stage Happens around the same time as Telophase Definition- The cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells www.tutorvista.com www.micro.magnet.fsu.edu www.dictionary.com

9 Table Cell Division Stage 1: Interphase Cell grows DNA replicates Prepares cell to divide Spends 90% of its life in this stage Stage 2: Mitosis Prophase Spindle fibers appear Nuclear membrane & nucleol disappear Metaphase Chromosomes move to middle Sister chromatids on either side Anaphase Chromatids separate & move to either end Chromatids contain same information Telophase Nuclear membrane & nucleol reappear Chromosomes loosen up & become chromatids Stage 3: Cytokinesis Division of cytoplasm Happens around the same time as Telophase Always moving to next stage


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