Blue-eyed individuals have a common ancestor

Blue-eyed individuals have a common ancestor
Researchers of the University of Copenhagen have found that, the genetic mutation which took place 6-10,000 years ago is the cause of the existing blue-eyed humans. OCA2 gene that codes for P protein limits its action to reduce the production of melanin in the iris which causes the brown eyes change to blue. It is the result of small degree of variation in the amount of melanin in the eyes. Hence, all blue-eyed individuals are found to have inherited the same switch at exactly the same spot in their DNA, which concludes that they are linked to a common ancestor.
How to cite this article:
Hameedunissa Begum A. Blue-eyed individuals have a common ancestor. BioLim O-Media. 20 March, 2017. 5(3).
Available from: http://archive.biolim.org/omedia/read/BOMA0201.