Talk:Overview of Cell Biology/Mitosis
Cell cycle page?
editHi. I was looking to add a description of the cell cycle to Wikiversity, but could not find any other relevant page. Hope it is OK to describe the whole cycle on a page titled Mitosis...I've tried to keep the emphasis on mitosis. I see that a previous attempt (not mine) has been deleted (in 2007). I am a new wiki-user, so suggestions welcome. --M123 21:36, 27 February 2008 (UTC)
copy + paste from Wikipedia
editHello, this seems to be copy + paste from Wikipedia's article w:Mitosis Please see: Wikiversity:What Wikiversity is not
- "A duplication of other Wikimedia projects. While Wikiversity complements other Wikimedia projects, it will not simply duplicate their content. So, if you want to read about a topic, you may be better off visiting, say, Wikipedia or Wikibooks, but if you want to learn about this topic, you can do so at Wikiversity. Learning materials will be created and used on Wikiversity, but materials on other projects may also be used as learning materials themselves or even places to consolidate this learning, i.e. writing an article, manual etc based on what you've learned. There may be some overlapping, but each project will maintain its own focus."
Also worthwile reading: Wikiversity:What is Wikiversity? How to Cite from Wikipedia.
What I do not understand is, that the IP itself made an edit like: pp-semi-vandalism|small=yes. ----Erkan Yilmaz (my talk page, wiki blog) 06:37, 24 October 2007 (UTC)
- The original article at Wikipedia is semi-protected and marked as such with {{pp-semi-vandalism|small=yes}}. Someone may have been frustrated by that and decided to make a copy here. --JWS 13:50, 24 October 2007 (UTC)
- Thanks for the explanation and the reedit on the page, ----Erkan Yilmaz (my talk page, wiki blog) 15:31, 24 October 2007 (UTC)
Removed content
editCells of the skin, gut, immune system and hair go through the cycle much more often than other tissues of the body. If a cell is not supposed to continue reproducing, it exits the cell cycle and enters a state called G0. The cell cycle is regulated by checkpoints at end of each phase. Before it can continue to the next phase, the cell first has to have minimal levels of DNA damage. DNA is damaged by free radicals such as those from sunlight and junk food. The cycling of the cell is controlled by proteins known as cell cycle regulators such as cell cycle inhibitors, one of which is p53, and cyclins (and their dependent kinases).
Extra information
editThis is from a worksheet I had to do in class
- Interphase - Chromosomes are not visible; Cytokinesis is completed; The cell plate is completed; Chromosomes are replicated; The organization phase.
- Prophase - The nucleolus begins to fade from view; The nuclear membrane begins to fade from view; The spindle is formed.
- Metaphase - The chromosomes are located at the equator of the cell; Chromatids line up along the equator.
- Anaphase - The sister chromatids are moving apart; The sister chromatids are moving towards the poles of the cell.
- Telophase - A new nuclear membrane is forming around the chromosomes; The cytoplasm of the cell is being divided; The chromosomes become invisible; The division (cleavage) furrow appears; The reverse of prophase.