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People with blue eyes have a single common ancestor | News - Latest news from the finance, banking, economy, real estate and IT.
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The research team analyzed the genetic mutation that leads to blue eyes. Mutations that occurred from 6000 to 10,000 years ago, and before that time, it seems that people with blue eyes on the planet. Livescience.com.
Genetic switch is located in the gene adjacent to OCA2 and rather than completely stop the action of the gene, the switch limits it reduces the production of melanin davis real estate in the iris. In fact, the switch diluted brown eyes and blue.
Eisberg and his team of DNA. mitochondria, energy-producing structures in cells that have blue eyes as Jordan, Denmark and Turkey. This genetic material comes from females, so you can keep track of the mother.
Over several generations of mixed ancestral DNA, so many people have a different order. However, some of these groups that have not been reshuffled are called haplotypes, if a group of people with long haplotypes, that means the sequence davis real estate arose relatively recently that our ancient ancestors. DNA sequence is not enough time to prepare.
What have managed to find is that with the blue eyes in Denmark and Jordan are the same haplotype was also suffering the same changes in gene expression that are associated with this mutation that causes blue eyes. Switch melanin.
Mutation is the OCA2 switch for melanin production, and depending on the amount of melanin in the iris can end up with eye color from brown to green. People davis real estate with brown eyes are very much individual variation in DNA that controls melanin production. However, researchers have found that people with blue eyes have a small degree of variation in the amount of melanin in their eyes.
Livescience.com Eiberg said that "the 800 people examined only one did not fit. But his eye color was blue with a single brown spot, "refers to findings that people with blue eyes have the same DNA sequence. Associated with the production of melanin.
Here we can conclude that blue eyes are linked to the same ancestor. davis real estate "They davis real estate have all inherited the same switch

at exactly the same spot in their DNA," said Eiberg and colleagues.
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