Ass Hat
Home
News
Events
Bands
Labels
Venues
Pics
MP3s
Radio Show
Reviews
Releases
Buy$tuff
Forum
  Classifieds
  News
  Localband
  Shows
  Show Pics
  Polls
  
  OT Threads
  Other News
  Movies
  VideoGames
  Videos
  TV
  Sports
  Gear
  /r/
  Food
  
  New Thread
  New Poll
Miscellaneous
Links
E-mail
Search
End Ass Hat
login

New site? Maybe some day.
Posting Anonymously login: [Forgotten Password]
returntothepit >> discuss >> Everyone that has blue eyes is related by arilliusbm on Nov 11,2011 12:21pm
Add To All Your Pages!
toggletoggle post by arilliusbm  at Nov 11,2011 12:21pm
Stolen from sigh

http://www.msnbc.msn.com/id/22934464/#.Tr1SQkP21r5

People with blue eyes have a single, common ancestor, according to new research.

A team of scientists has tracked down a genetic mutation that leads to blue eyes. The mutation occurred between 6,000 and 10,000 years ago, so before then, there were no blue eyes.

"Originally, we all had brown eyes," said Hans Eiberg from the Department of Cellular and Molecular Medicine at the University of Copenhagen.


The mutation affected the so-called OCA2 gene, which is involved in the production of melanin, the pigment that gives color to our hair, eyes and skin.

"A genetic mutation affecting the OCA2 gene in our chromosomes resulted in the creation of a 'switch,' which literally 'turned off' the ability to produce brown eyes," Eiberg said.

The genetic switch is located in the gene adjacent to OCA2 and rather than completely turning off the gene, the switch limits its action, which reduces the production of melanin in the iris. In effect, the turned-down switch diluted brown eyes to blue.

If the OCA2 gene had been completely shut down, our hair, eyes and skin would be melanin-less, a condition known as albinism.

"It's exactly what I sort of expected to see from what we know about selection around this area," said John Hawks of the University of Wisconsin-Madison, referring to the study results regarding the OCA2 gene. Hawks was not involved in the current study.

Baby blues
Eiberg and his team examined DNA from mitochondria, the cells' energy-making structures, of blue-eyed individuals in countries including Jordan, Denmark and Turkey. This genetic material comes from females, so it can trace maternal lineages.

They specifically looked at sequences of DNA on the OCA2 gene and the genetic mutation associated with turning down melanin production.

Over the course of several generations, segments of ancestral DNA get shuffled so that individuals have varying sequences. Some of these segments, however, that haven't been reshuffled are called haplotypes. If a group of individuals shares long haplotypes, that means the sequence arose relatively recently in our human ancestors. The DNA sequence didn't have enough time to get mixed up.

"What they were able to show is that the people who have blue eyes in Denmark, as far as Jordan, these people all have this same haplotype, they all have exactly the same gene changes that are all linked to this one mutation that makes eyes blue," Hawks said in a telephone interview.

Melanin switch
The mutation is what regulates the OCA2 switch for melanin production. And depending on the amount of melanin in the iris, a person can end up with eye color ranging from brown to green. Brown-eyed individuals have considerable individual variation in the area of their DNA that controls melanin production. But they found that blue-eyed individuals only have a small degree of variation in the amount of melanin in their eyes. 

"Out of 800 persons we have only found one person which didn't fit — but his eye color was blue with a single brown spot," Eiberg told LiveScience, referring to the finding that blue-eyed individuals all had the same sequence of DNA linked with melanin production.

"From this we can conclude that all blue-eyed individuals are linked to the same ancestor," Eiberg said. "They have all inherited the same switch at exactly the same spot in their DNA." Eiberg and his colleagues detailed their study in the Jan. 3 online edition of the journal Human Genetics. 

That genetic switch somehow spread throughout Europe and now other parts of the world.

"The question really is, 'Why did we go from having nobody on Earth with blue eyes 10,000 years ago to having 20 or 40 percent of Europeans having blue eyes now?" Hawks said. "This gene does something good for people. It makes them have more kids."




toggletoggle post by Lamp  at Nov 11,2011 12:27pm edited Nov 11,2011 12:28pm
never mind, posted before I finished reading



toggletoggle post by sigh at Nov 11,2011 12:28pm
Based on their conclusion I should be rolling in pussy.



toggletoggle post by Samantha at Nov 11,2011 12:30pm
arilliusbm said[orig][quote]

"The question really is, 'Why did we go from having nobody on Earth with blue eyes 10,000 years ago to having 20 or 40 percent of Europeans having blue eyes now?" Hawks said. "This gene does something good for people. It makes them have more kids."



http://www.sciencedaily.com/releases/2006/10/061023193617.htm

"According to Bruno Laeng and colleagues, from the University of Tromso, Norway, the human eye color reflects a simple, predictable and reliable genetic pattern of inheritance. Their studies1, published in the Springer journal Behavioral Ecology and Sociobiology, show that blue-eyed men find blue-eyed women more attractive than brown-eyed women. According to the researchers, it is because there could be an unconscious male adaptation for the detection of paternity, based on eye color."



toggletoggle post by arilliusbm  at Nov 11,2011 12:34pm
What about our 3rd eye? How come NO ONE CARES ABOUT THAT



toggletoggle post by NuclearWinter at Nov 11,2011 12:39pm



toggletoggle post by Yeti at Nov 11,2011 12:40pm
my eyes are blue, but my third eye is brown.



toggletoggle post by Yeti at Nov 11,2011 12:41pm
i don't care either way, but i work with this girl who has the most mesmerizing glacial blue blowjob eyes. my girlfriend has dark brown eyes and i love them.



toggletoggle post by arilliusbm  at Nov 11,2011 12:42pm
IT TELLSH ME THAT GOOSHSTEPPING MORONS LIKE YOUSHELF SHOULD TRY READING BOOKSH INSHTEAD OF BURNING THEM



toggletoggle post by Yeti at Nov 11,2011 12:45pm



toggletoggle post by Registered Republican at Nov 11,2011 12:58pm
This is obviously a fabrication by the godless liberal scientific community! Everyone knows that the earth is only 5,000 years old! The bible tells us so! To suggest that eye color is determined by anything other than God's will is insulting, and quite frankly - UNAMERICAN!



toggletoggle post by Yeti at Nov 11,2011 1:01pm
Bury your dreams
Drown your skin
Useful ruins

Baby Blue Eyes

Perfect waist
Perfect skin
Breed and serve

Baby Blue Eyes

Bury your dreams
Drown your skin
Useful ruins

Baby Blue Eyes



toggletoggle post by frankovhell at Nov 12,2011 6:31am
Blue eyes do indeed help you get laid.



toggletoggle post by The_Reverend   at Nov 12,2011 1:58pm
My eyes have a circle of green and a circle of blue. Wonder what that does for me?



toggletoggle post by The_Reverend   at Nov 12,2011 2:01pm
I thought the conclusion would be that brown eyed girls are full of shit.



toggletoggle post by Pires at Nov 12,2011 2:04pm
The_Reverend said[orig][quote]
My eyes have a circle of green and a circle of blue. Wonder what that does for me?


It makes you unable to spell properly.



toggletoggle post by Oh Snap Troll at Nov 12,2011 2:11pm
Oh snap!



toggletoggle post by the_reverend   at Nov 12,2011 9:21pm
Yeah.. I sure did get served there. Wow!



toggletoggle post by Pires at Nov 12,2011 11:47pm
<3



toggletoggle post by CurlyRed at Nov 13,2011 9:59am
I like green eyes the best.



toggletoggle post by Doomkid   at Nov 13,2011 10:10am edited Nov 13,2011 10:11am
I would only have been surprised if blue eyes had arisen from multiple individuals having the same mutation occur.



toggletoggle post by Alx_Casket  at Nov 13,2011 11:27am



toggletoggle post by Lamp  at Nov 13,2011 1:06pm
CurlyRed said[orig][quote]
I like green eyes the best.


sup



toggletoggle post by arilliusbm  at Nov 13,2011 5:28pm
Lamp has bright eyes.

LOL GET IT



toggletoggle post by blessed offal nli at Nov 13,2011 5:32pm
arilliusbm said[orig][quote]
IT TELLSH ME THAT GOOSHSTEPPING MORONS LIKE YOUSHELF SHOULD TRY READING BOOKSH INSHTEAD OF BURNING THEM


post of the month



toggletoggle post by Lamp nli at Nov 14,2011 1:36am
arilliusbm said[orig][quote]
Lamp has bright eyes.

LOL GET IT


aaaahhhhhhhhhhhhhhh yo



toggletoggle post by Mutis NLI at Nov 15,2011 9:23am
In just a couple decades nobody will have blue eyes anymore. And we'll all be hispanic.



Enter a Quick Response (advanced response>>)
Username: (enter in a fake name if you want, login, or new user)SPAM Filter: re-type this (values are 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E, or F)
Message:  b i u  add: url  image  video(?)show icons
remember:Vicious Apocalyptic Woman
[default homepage] [print][5:54:22am Mar 29,2024
load time 0.01555 secs/15 queries]
[search][refresh page]