The Female X chromosome is the most extraordinary in the human genome in terms of biology and its association with disease.
Females are protected from many diseases because of their double dose of the bigger, stronger X chromosome.
(If you look through the microscope, you can immediately see the difference, in the Y s small, crumpled size.
Further, the X chromosome - one of 24 distinct chromosomes found in human cells - is much larger than the relatively puny Y, containing 1,098 genes to the Ys 78 so females have over 1,000 more genes than males, due to the female chromosomes attacks. Unfortunately, because males have only a single X chromosome, more genetic diseases have been found on this chromosome.
In a sense, it does not matter too much that a male is missing genes on his Y chromosome, because he has equivalent copies on his X chromosome.
But this leaves males vulnerable to any problems lurking on the X.
Diseases on the X chromosome are usually expressed in males because they dont have a compensating copy of the gene on the second chromosome, said Dr Ross. More than 300 conditions have been linked to the X chromosome so far.
A host of nasty diseases and disorders sit on the human X chromosome, including haemophilia, autism, muscular dystrophy and mental retardation.
But because females have another - usually healthy - copy of the X chromosome, they are usually shielded from the full impact of these disorders.
Re: Women are superior by evolutionary standards
by inferiorXy on Oct 25, 2008 09:56 PM Permalink
Males, on the other hand, who have nothing to fall back on, are forced to fully express their faulty genes.
Because males have only a single X chromosome, more genetic diseases have been found on this chromosome than any other,
said Dr Ian Jackson of the MRC Human Genetics Unit, UK. One consequence is that boys have a higher incidence of mental retardation than girls.
The high quality DNA sequence published here has already aided the identification of numerous disease genes. There are many more to be discovered and this sequence will be invaluable for tracking these genes down.
Re: Re: Women are superior by evolutionary standards
by inferiorXy on Oct 25, 2008 09:56 PM Permalink
It takes an entire months cycle for the viability of an egg, whereas spermthe disposable male reproductive cell designed to deteriorate after its purpose is endedis produced by the millions daily.
Eggs are never ejaculated frivolously and wiped up with toilet paper or a sock. Consider that.
And why do boys have nipples? Because in the womb, we all start out as Femaletwo perfect XX chromosomes. Only when an alternate gene is introduced does the developing embryo become XY (male)a mutation of lifes original template, produced to accommodate the necessary process of sexual reproduction. In short, Women are complete human beings, and men are nothing more than genetically modified Women.
In mammals, the male is big and complex indeed, but you cant ever get away from the fact males are here only as a result of a reproductive strategy nature took to create combinant genes. Its not like nature evolved the male forward past the female; the male is a variant of the female to accommodate a reproductive stratagem, and nothing more. He is and always will be a copy of a Female.
Re: Re: Re: Women are superior by evolutionary standards
by inferiorXy on Oct 25, 2008 09:57 PM Permalink
All that aside, research has shown us women tend to have better memory than men, have more complex nervous systems, contain more genetic material, are less prone to early death and disease, tend to be on average healthier and even smarter than men.
Biologically, Females are superior to males.
The male Y chromosome, is getting more and fragile, and is becoming smaller and less important will disappear completely over forthcoming generations
