mitosis: life sciences for grade 10`s

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MITOSIS BY:GUGULETHU MTHAMBO 1

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  • 1. MITOSIS
  • 2. MITOSIS: An Introduction Mitosis eukaryotic two identical
  • 3. REMEMBER! Interphase Prophase Metaphase Anaphase Telophase Cytokinesis IPMATC
  • 4. Interphase: 46 Chromosomes
  • 5. Prophase condenses same genetic information. opposite
  • 6. PROPHASE
  • 7. Metaphase nuclear membrane disappears Polar fibers extend randomly align angles equal forces polar fibers
  • 8. Metaphase Animal Cell Plant Cell
  • 9. Metaphase: Chromosomes align at middle of cell.
  • 10. METAPHASE
  • 11. Anaphase The sister chromatids now become separate daughter chromosomes, and are pulled apart by shortening kinetochores microtubules and move toward the respective centrosomes to which they are attached.
  • 12. ANAPHASE
  • 13. Anaphase: Separated chromosomes pulled apart.
  • 14. Telophase In Telophase, the chromosomes are cordoned off into distinct new nuclei in the emerging daughter cells The polar fibers continue to lengthen. Nuclei (plural form of nucleus) begin to form at opposite poles. The nuclear envelopes of these nuclei are formed. Nucleoli also reappear. Chromatin fibers of chromosomes uncoil.
  • 15. TELOPHASE
  • 16. Telophase: Microtubules disappear, cell division begins.
  • 17. Cytokinesis Cytokinesis division cytoplasm nuclear cell membrane tightened.
  • 18. CYTOKINESIS
  • 19. Cytokinesis The division of the cytoplasm. In animal cells, a Cleavage Furrow forms and separates Daughter Cells Cleavage furrow in a dividing f
  • 20. Importance of mitosis Mitosis maintenance chromosomal 1.Regeneration 2.Vegetative Reproduction 3.Growth 4.Cell Replace ment
  • 21. Errorsin mitosis broken lost incorrectly chromosomal inversion organism death
  • 22. I hope this powerpoint helps you to understand MITOSIS better The End
  • 23. Reference list: Babbileo. (2013). [Online], Available at: http://www.slideshare.net/babbileo/mitosis- 21017634?qid=b3beeb2f-8051-4032-9655- 55f08e494357&v=default&b=&from_search=8 (Accessed 06 March 2014) Charlie. (2013) . [Online], Available at: http://www.slideshare.net/charlietheteacher/mitosis-ppt-27467916?qid=c96528ae- 3a55-47e7-bb09-fa9c5e784b45&v=qf1&b=&from_search=18 Kalember, J. (2014). [Online], Available at: http://www.slideshare.net/MRKALEMBER/mitosis-30635784?qid=c96528ae-3a55-47e7- bb09-fa9c5e784b45&v=qf1&b=&from_search=6 (Accessed 06 March 2014) Memon , N. (2012). [Online], Available at : http://www.slideshare.net/NailaMemon/presentation1-11659810 (Accessed 03 March 2014) Dreyngerous . (2008). [Online], Available at: http://www.slideshare.net/dreyngerous/mitosis-539875