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Scientists studying the genetics of eye colour at the University of Copenhagen found that more than 99.5 per cent of blue-eyed people who volunteered to have their DNA analysed have the same tiny mutation in the gene that determines the colour of the iris.
Professor Hans Eiberg of the university said he has analysed the DNA of about 800 people with blue eyes, ranging from fair-skinned, blond-haired Scandinavians to dark-skinned, blue-eyed people living in Turkey and Jordan.
"All of them, apart from possibly one exception, had exactly the same DNA sequence in the region of the OCA2 gene. This to me indicates very strongly that there must have been a single, common ancestor of all these people," he said.
The study reported in the journal Human Genetics indicates that the mutation originated in just one person who became the ancestor of all subsequent people in the world with blue eyes.
"From this we can conclude that all blue-eyed individuals are linked to the same ancestor. They have all inherited the same switch at exactly the same spot in their DNA," Professor Eiberg was quoted as saying by The Independent daily of Britain on Thursday.
Even though the scientists are unable to pinpoint the exact date when the mutation occurred, evidences suggested it probably arose about 10,000 years ago when there was a rapid expansion of the human population in Europe as a result of the spread of agriculture from the Middle East.
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RatingGeorge Bush and Usama Bin Laaden are from the same Genetics as they both are killers. Hitler and George Bush have same blood group, both are killers. Stuipd study, these Americans link anything to anything on earth. All is the game of money and fame in American Journals, and Politics behind it. Recently Pluto was taken away from the solar system and should not be written in the books in American Astrology. All world and even SUN knows that Pluto Exists and is a fact-its a gasous planet, little is known to these American Astromoners and many in world. But, politics and fame for wrong dogma in books. No wonder the kids are dum in USA.
i have a blue eyed neice in my family..no one else in the family in the last 3 generation had blue eye..wat does that mean
I am also an ancestor of ash , we used to live in a cave 10000 years ago in our earlier life. she was not that pretty that time , though I gave her lift as I had the sixth sense and could travel into time thinking in some life she will become pretty , she had a lump on her forehead then , but still its ok , after so many refinement she has shaped up
There is a distinct difference in the body build and eye color of people on the West Coast from Konkan to some extent South Kanara. It is prominent among women, body structure and eyes. This has something to do with traders landing on the West coast and interbreeding. Mainly from Portugal I think.
How can the scientists come to such a conclusion? A similar mutation can occur in more than one person, in more than one place, when you consider a time span of thousands of years and the billions of people, who must have lived over that period.
Ash is green_eyed and not blue eyed as claimed.Gene mutation is continuous process and it can take place even in older period and in a number of individuals.The findings should be thus broad based and should coinside with the period.By regression method the initiation period may be drawn.
Is this a news? Where does the scientific evidence say that ash
That's true.
A load of rubbish. Mutation can take at any stage, any region and in any population. There must vbeen more than one person with blue eyes. It, the mutation can take place in more than one person. due to environmental factors.
Not only the blue-eyed, but all life forms are from the same ancestor, according to Bhagvat Gita ch.14. v 3
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