All people with blue eyes on earth descend from the same sole ancestor

If you have blue eyes. Furthermore, you are part of a large world family that dates back to one person who lived between 6,000 and 10,000 years ago. However, It is the amazing result of a major scientific study.

As incredible as it may seem, all people with blue eyes share a common ancestor. Therefore, This amazing revelation is the fruit of the research of a team of scientists from the University of Copenhagen. Meanwhile, which highlighted a genetic change that occurred about 6,000 to 10,000 years ago, as Professor Eiberg in Science Daily tells. Meanwhile,

The researchers have long been interested in eye color. trying to understand why some people have brown, green or blue eyes. In fact, this color depends on the quantity and quality of melanin present in the iris. For example. people with green eyes have all people blue eyes earth a reduced amount of melanin compared to those with brown eyes, but it is a different story for blue eyes.

The researchers examined in detail the OCA2 gene, known to determine the level of brown pigment in the human eye. However, it is not the OCA2 gene that is directly responsible for the blue eyes. In reality, the genetic mutation comes from another gene, called HERC2. This gene acts in a way as a switch. When activated, it deactivates the OCA2 gene, preventing melanin production, the pigment that gives their brown color to the eyes. It is this absence of melanin in the iris which gives blue eyes. This mutation is the same for all people with blue eyes. which means that they have all inherited from the same switch, located exactly in the same place of their DNA.

all people blue eyes earth

Professor Hans Eiberg. an expert in this field, explains that this specific mutation is an excellent example of how changes in our DNA can have visible effects. People with blue eyes therefore share not only a physical characteristic, but also a unique genetic connection.

The origin of this mutation dates back to an era when humans migrated. mixed, which allowed this mutation to spread. This occurred before human societies stabilized. settled, which means that the common ancestor of all people with blue eyes could have lived in a geographic region today indeterminate, perhaps somewhere in Europe or Asia.

This ancestral connection is a magnificent illustration of the interconnection of humanity. Even if we live in different corners of the world. our cultures and our languages are diverse, it is fascinating to think that a simple characteristic like the color of our eyes can relate to us in such all people blue eyes earth a deep and unexpected way.