Talk:Polar body

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Removed a confusing bit...[edit]

I changed

There may be one or two polar bodies in the ovum of plant cells (though animal cells may possibly possess it).

to

There may be one or two polar bodies in the ovum of plant cells.

because I found it to be oddly worded and confusing- if someone knows what this is trying to say about animal cell polar bodies, please, by all means, fix it. the infamous rmx (talk) 09:22, 6 May 2009 (UTC)[reply]

This sentence is quite confusing.[edit]

"The three haploid polar bodies are the by-products of this division, and are essentially discarded by the egg."

It mentions three polar bodies without mentioning the species, etc. I assume it refers to the plants mentioned in the previous paragraph as in mammals only rarely does the first polar body divide and in humans only two polar bodies exist to the best of my knowledge (the first not dividing).

Pradyumna k m (talk) 07:53, 16 July 2010 (UTC)[reply]

Sources and Plant Info[edit]

There are no sources for this article (except for one on a side issue). I have found some good refs and will add at least the best one.

The plant info is inaccurate and I am removing it until it can be rewritten to be more accurate. I will take this on anon as well. Michaplot (talk) 06:23, 25 May 2012 (UTC)[reply]

Genetic Similarity?[edit]

The article said: "Additional fertilization of the first polar body would result in only 25% genetic identity, since the twins would share none of the maternal genome. On the other hand, additional fertilization of the second polar body would result in half twinning with 75% genetic identity, because the twins would share all the maternal genome."

I cannot make sense of this, and it seems wrong to me if I am interpreting it correctly. Does anyone have a source for this or know what it means?Michaplot (talk) 21:58, 15 October 2012 (UTC)[reply]

Polar Bodies in general[edit]

Polar bodies exist, are mentioned in several textbooks. However, the information in this article here is sparse. One question I had, and why I came to wikipedia, is whether humans have polar bodies or not. (I found it not quite logical that 4 haploid cells are made, yet 3 of these cells die, but was curious whether this was the case in humans.) I believe in mice polar bodies exist. 62.47.245.163 (talk) 21:16, 16 October 2012 (UTC)[reply]

It is the definitely the case with humans, and mammals in general. The result of meiosis is a single large cell, rather than four equal size cells. (http://www.ncbi.nlm.nih.gov/books/NBK10008/) Michaplot (talk) 05:23, 21 October 2012 (UTC)[reply]

It may be that a rare mitosis can occur at any vulnerable stage of meiosis in any meiotic product, complicating meiosis--but to call a rare mitosis resulting in a double product, a meiosis, would be in error. The paths to twinning are sundry. Someone could logically divide this information into respective linked articles. Considering; mammalian, non-mammalian, fungi and flora; is just so exasperating. Mouselb (talk) 19:12, 27 October 2017 (UTC)[reply]

Section 'Additional images', the second image[edit]

(Scheme showing analogies in the process of maturation of the ovum and the development of the spermatids.)

That image labels oocyte as cöcyte. I believe this to be in error, as a cöcyte is neither a part of oogenesis nor gamatogenesis. Mouselb (talk) 18:42, 27 October 2017 (UTC)[reply]

shallow and pedantic[edit]

SECTION MEDICAL APPLICATIONS, the word "costs"

when it is pluralized like it is, costs means "more than one style of loss." But the word "lower" directly preceding as in "lower costs" implies that the word means financial cost cheapness. if the intended meaning is financial, remove the goshdarn "S". if the intended meaning is medical , and you're describing these styles of costs in subsequent sentences, remove the word "lower" and fix your sentence structure...

most words ever suggesting removal of just one letter? i hope there;s a prize...