Eye color is primarily determined by the amount of melanin present in the iris's front layers.
The Role of Melanin
- Melanin is a pigment that gives color to our skin, hair, and eyes.
- The amount of melanin in the iris directly affects eye color.
- Brown eyes have a large amount of melanin.
- Blue eyes have significantly less melanin.
Genetic Influence
- A particular region on chromosome 15 is a key factor in determining eye color, according to the provided reference from 07-Jul-2022.
Summary
Eye color is a result of the melanin quantity within the iris. Genetic factors also play a significant role, with a specific region on chromosome 15 being identified as influential. The variation in melanin determines whether a person's eyes are brown (high melanin) or blue (low melanin).
