Scientists Have Discovered Shocking Detail About People With Blue Eyes!
It is estimated that between 20 and 40 percent of Europeans have blue eyes, but the exact reason for the blue eye is not yet known. Scientists believe that it is a genetic mutation and gene survived because people with that eye color are considered physically attractive and have more opportunity to multiply.
Eye color determines the amount of pigment in the iris of the eye. Many pigments means brown eyes, less pigment have people with green eyes and little or no pigment having people their blue eyes.
Only 16 genes determine eye color, but both main “HERC2” and “OCA2” by “HERC2” activate “OCA2” and this then activates proteins that produce pigments.
If one of these two genes mutates and not to exercise its function breaks the chain reaction and protein do not produce pigment, and the result of its blue eyes.
Each has two of each kind of genes in his body, one from the father and the mother. If one parent has mutated “OCA2” gene, and the other entire ‘normal’ child has brown eyes.
If both parents have mutated “OCA2,” there is even a 25 percent chance that the child will have blue eyes. Theoretically, hidden mutated “OCA2” can be transmitted through the family for generations, and no one can blue eyes.
Research conducted at the University of Copenhagen studied the DNA of people with blue eyes and found that 99.9 percent of them had a mutation of “OCA2” gene.
Because scientists believe that all people with blue eyes descended from a common ancestor, which means that all are actually cousins.