Talk:Meiosis
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Article Grading: The following comments were left by the quality and importance raters: (edit ยท refresh) rated top as high school/SAT biology content - tameeria 14:48, 17 February 2007 (UTC) The article would benefit from having pictures of the meiotic stages, e.g. prophase I stages. It needs a section on chromosome crossover and meiotic recombination. - tameeria 18:48, 18 February 2007 (UTC) |
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pachytene stage - During this stage the paired chromosomes "thicken" and crossing over occurs - from lecture notes. I would like to learn more about each of these stages. Please do research on these -ene stages and fill in more details, maybe make a stub.
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[edit] Regarding major revision 21:36 & 21:42 on 26 July 2005
I've revised At birth?
- Meiosis is arrested in Prophase I prenatally for mammalian females. It stays in Prophase I until ovulation, when the oocytes are formed -- completing the rest of the meiotic stages.Ted 19:13, 25 January 2006 (UTC)
[edit] Site of discovery
The article currently claims that meiosis was discovered in sea urchin eggs. Surely sea urchin gonads or sea urchin embryos are meant, no? I checked the article on Oskar Hertwig but this discovery is not mentioned there. --arkuat (talk) 05:07, 23 March 2006 (UTC)
- Wasn't Hertwig reporting pronuclear fusion during sea urchin fertilization, not meiosis? Dr d12 01:06, 28 February 2007 (UTC)
[edit] Detailed description of meiosis
Dies someone have some pictures to accompany the detailed explanation of meiosis? I think it would greatly increase its understandability.Redmess 19:35, 7 May 2006 (UTC)
[edit] pictures or diagrams
I think this page needs diagrams at each step of meiosis in order to help the reader visulize the process. I don't think the one diagram at the beginning is enough. as said above.
[edit] suggestion of diagram
here is one you can add: http://www.ncbi.nlm.nih.gov/About/primer/images/Meosis4.GIF but i'm having troube including it.
and another better one: http://www.bioethics.gov/images/sc_images/meiosis.gif
- I definately think we should use the second one, the picture on the page is much too confusing. Eipiplus1 11:17, 11 December 2006 (UTC)
[edit] tetrad
I thank you guys for having the word tetrad in this article. I've been wanting to know what in the world that word had to do with meiosis. Okay, I think that's all. --JDitto 06:51, 10 October 2006 (UTC)
[edit] Terminology
The simpler, but less descriptive names for the two parts of meiosis are (obviously) Meiosis I and Meiosis II. More descriptive names are reduction division and equational division, respectively. The diagram at the top of the article alternatively uses "reductional division" to name the first step. Yet these more descriptive names are mentioned nowhere in the text of the article. โGordon P. Hemsleyโโ 23:35, 12 November 2006 (UTC)
[edit] Latest developments
I removed this statement from the prophase I section:
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- During this stage, one percent of DNA that wasn't replicated during S phase is replicated. The significance of this cleanup act is unclear.
While I doubt that it is untrue, it was not cited, and if anything, it would confuse the reader. If someone can find the journal article it came from, I feel as though it could be added in a different section (possibly about the latest developments; we could also add something about how experiments on [[S. cerevisiae]] show that a lot of the processes of crossing over might occur before currently thought or become visible). I just feel that adding these special cases to the body of information might be confusing. If someone wants to work with me to add such info, I'd be willing to add it. --Michael 01:31, 5 February 2007 (UTC)
