Mom's Genetics Could Produce Gay Sons

min0 lee · 02-28-2006, 07:17 PM

Source

Kefe has no one to blame but his mother.

Quote:

The arrangement of a mother's genes could affect the sexual orientation of her son, according to a new study.
The finding, detailed in the February issue of the journal Human Genetics, adds fuel to the decade-long debate about whether so-called "gay genes" might exist.
The researchers examined a phenomenon called "X chromosome inactivation" in 97 mothers of gay sons and 103 mothers whose sons were not gay.
X and Y
Chromosomes are large thread-like molecules that contain an organism's genetic instructions. Humans have 23 chromosomes. The X chromosome is one of two sex chromosomes in mammals; the other is the Y chromosome. Females have two X chromosomes and no Y's, while males have one X and one Y.
Even though women have two X chromosomes, only one is functional because the other is inactivated through a process called "methylation."
"It gets wrapped up in a ball and is not used with the exception of a few genes," explained study leader Sven Bocklandt of the University of California, Los Angeles.
If one of the females' X chromosomes is not turned off, then there is too much genetic material, which can lead to a harmful overabundance of proteins. Down syndrome, for example, results from the presence of an extra copy of chromosome 21.
Big difference
Normally, X chromosome inactivation occurs at random: half of the cells in a woman's body will have one X chromosome inactivated, while the other half inactivates the other chromosome.
However, when the researchers in the current study examined cells from the 42 mothers who had at least two gay sons, they found that about a quarter of the women in this group showed something different.
"Every single cell that we looked at in these women inactivated the same X chromosome," Bocklandt told LiveScience. "That's highly unusual."
In contrast, only 4 percent of mothers with no gay sons and 13 percent of those with just one gay son showed this type of extreme skewing.
Bocklandt thinks this suggest that a mother's X chromosomes partly influences whether her son is gay or not.
"We think that there are one or more genes on the X chromosome that have an effect on the sexual orientation of the sons of these mothers, as well as an effect on the cells we were looking at," Bocklandt said.
Other chromosomes implicated
Bocklandt was also involved in an earlier study that looked at the entire human genome of men who had two or more gay brothers. The researchers found identical stretches of DNA on three chromosomes—7, 8 and 10—that were shared by about 60 percent of the gay brothers in the study.
That study also found mothers to have an unusually large role in their son's sexual orientation: the region on chromosome 10 correlated with homosexuality only if it was inherited from the mother.
The results from these two studies suggest that there are multiple genetic factors involved in determining a person's sexual orientation and that it might vary depending on the person.
"We think that there are going to be some gay men who are X chromosome gay men and some who are chromosome 7 gay men or chromosome 10 gay men or some combination," Bocklandt said in a telephone interview.
Most researchers now think that there is no single gay gene that controls whether a person is homosexual or not. Rather, it's the influence of multiple genes, combined with environmental influences, which ultimately determine whether a person is gay.
A touchy subject
Research into the genetics of sexual orientation is controversial. Religious leaders who believe that sexual orientation is a choice argue that such research is an attempt to legitimize homosexuality; others worry that a detailed knowledge of the genetics underlying homosexuality will open the door to genetic engineering that prevents it.
But Bocklandt doesn't think these concerns should prevent scientists from asking the basic question of whether homosexuality has an underlying genetic component to it or not.
"I have no doubt that at some point we'll be able to manipulate all sorts of aspects of our personality and physical appearance," Bocklandt said. "I think if there's ever a time when we can make these changes for sexual orientation, then we will also be able to do it for intelligence or musical skills or certain physical characteristics—but whether or not these things are allowed to happen is something that society as a whole has to decide. It's not a scientific question."

TJ Cline · 02-28-2006, 07:22 PM

That explaines: Dale, Topolo and Gococks

min0 lee · 02-28-2006, 07:25 PM

Quote:

Originally Posted by ForemanRules

That explaines: Dale, Topolo and Gococks

They share the same mudder?

maniclion · 03-01-2006, 04:59 PM

So if they find a way to genetically mutate it through say stem cell research will the religious fanatics allow just that so we can get rid of the evil fairies? Or what if they find a way to detect it early in birth say past the legal abortion period will the religious nuts allow the pre-fag to be aborted?

kicka19 · 03-03-2006, 10:30 AM

Quote:

Originally Posted by maniclion

So if they find a way to genetically mutate it through say stem cell research will the religious fanatics allow just that so we can get rid of the evil fairies? Or what if they find a way to detect it early in birth say past the legal abortion period will the religious nuts allow the pre-fag to be aborted?

hahahah, pre-fag, i liek that even better than gaytards

gococksDJS · 03-03-2006, 12:30 PM

So homosexuality is basically a point mutation? Damn mutants

**Dale Mabry** · 03-03-2006, 12:42 PM

topolo's mom turned me gay. I couldn't handle her 5 gallon orgasms. And her titties looked like Shepard's Pie in 2 trash bags.

kicka19 · 03-03-2006, 01:19 PM

Quote:

Originally Posted by Dale Mabry

topolo's mom turned me gay. I couldn't handle her 5 gallon orgasms. And her titties looked like Shepard's Pie in 2 trash bags.

that is fuckn sick

03-01-2006, 04:59 PM	#4
maniclion Cartographer of the Mind Elite Member Join Date: Aug 2003 Location: Mens Incognita Posts: 20,437 Photos: 10	So if they find a way to genetically mutate it through say stem cell research will the religious fanatics allow just that so we can get rid of the evil fairies? Or what if they find a way to detect it early in birth say past the legal abortion period will the religious nuts allow the pre-fag to be aborted? "We are like tenant farmers chopping down the fence around our house for fuel when we should be using Natures inexhaustible sources of energy — sun, wind and tide. ... I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that." Thomas Edison: In conversation with Henry Ford and Harvey Firestone

03-03-2006, 12:42 PM	#7
Dale Mabry Moderator Moderator Join Date: May 2003 Location: Elsewhere Posts: 14,335 Photos: 10	topolo's mom turned me gay. I couldn't handle her 5 gallon orgasms. And her titties looked like Shepard's Pie in 2 trash bags. If sense were common, everyone would have it. 4/2007-Current 75th Ranked most popular image 1 spot behind Prince's bulge...

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02-28-2006, 07:22 PM	#2
TJ Cline Member Join Date: May 2005 Posts: 12,545	That explaines: Dale, Topolo and Gococks

03-03-2006, 12:30 PM	#6
gococksDJS RIP Foreman Join Date: Jul 2004 Posts: 6,000	So homosexuality is basically a point mutation? Damn mutants