Types of Iris color π
Types of Iris Color π
Eye color is the result of variations in the amount of melanin, a pigment found in the front part of the iris of the eye. The lack of this pigment results in blue eyes, some pigment gives green and lots of pigment gives #brown_eyes.
So light brown eyes just have a bit less melanin than darker brown eyes. All of the different shades of eye color happen the same way. Blue-green eyes have an amount of melanin between green and blue, hazel eyes have an amount of pigment between green and brown, etc.
Scientists have even found the key gene, OCA2, which can explain why some people have brown eyes and some people don't. Despite some work, scientists haven't been able to find the key gene involved in green eyes. This is most likely because there is more than one gene.
Comments
Post a Comment