|This article is of interest to the following WikiProjects:|
Awful circular definition
This is the worst kind of circular definition, very common in developmental biology:
"A gamete...is a cell that fuses with another gamete during fertilization (conception) in organisms that reproduce sexually."
No Thanks Required
No, thank you for being a loyal contributor to the Wikipedia communty. We owe all we are to the people. Thank you! -JULIAN VELOSO ROSALES- — Preceding unsigned comment added by 18.104.22.168 (talk) 06:39, 26 April 2009 (UTC)
The section on human sex determination is irrelevant and misleading. Although it specifies in humans, it fails to explain the complexity of sex determination across the animal kingdom. If no one disagrees, I would like to remove this section:
In humans, an ovum can carry only an X chromosome (of the X and Y chromosomes), whereas a sperm may carry either an X or a Y; males have the control of the sex of any resulting zygote, as the genotype of the sex-determining chromosomes of a male is XY, and a female's is XX. In other words, because the Y chromosome can only be present in the sperm, it is that gamete alone which can determine whether an offspring will be a male or female.
In it's place I would prefer to put something along the lines of:
In many animals, sex determination is dependant on the gametes of one of the parents. For example, in humans, the male gametes may either carry an X or Y chromosome which, when combined with the chromosomes of the mothers eggs will either result in XX for a female of XY for a male zygote. However this is not the case in all organisms, for example in some birds, it is the chromosomes in the female's zygotes that determine the offspring's sex. Abergabe (talk) 10:37, 6 September 2010 (UTC)
“I am considering developing this page further as part of an educational assignment in Fall of 2013. If someone else is also working on this, please send me a message and let me know soon, so we donʼt duplicate initial efforts in page development.” --E9P2 (talk) 00:44, 7 October 2013 (UTC)
This article is terrible.
What a horrible article. Specifically, it claims that gametes carry half of the "genetic information" of the individual. Where does the other half come from, Outer-space? It also states something unintelligible about 1n. In point of fact, the two gametes carry "all" of what will become the "genetic information" of the individual. In humans, the ova contribute both nuclear and mitochondrial (mt-DNA) genetic information, while the mt-DNA in the sperm is normally destroyed during/soon after fertilization. It fails to clearly explain the range of variation of sexual identity, from hermaphrodites, to environmentally and developmentally induced sex change. It fails to even acknowledge that there are a wide range of possible chromosome combinations XXY, XYY, etc. which may occur in addition to XX and XY in humans, and it fails to distinguish between genetic and phenotypic "sex". It falsely claims that an ovum may carry "only an X" and a sperm "either an X or a Y" [only]. This seems to have been written by a Middle school child.22.214.171.124 (talk) 14:34, 16 April 2014 (UTC)
- Since you know more than most help out and edit the article. Waters.Justin (talk) 22:25, 26 February 2015 (UTC)
The comment(s) below were originally left at several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section., and are posted here for posterity. Following
|rated top as high school/SAT biology content - tameeria 14:34, 17 February 2007 (UTC) The article needs expansion and images (e.g. isogamy versus anisogamy) - tameeria 18:08, 18 February 2007 (UTC)|
Last edited at 18:08, 18 February 2007 (UTC). Substituted at 15:47, 29 April 2016 (UTC)