Introduction
Ever wondered why brown eyes are the most common eye color? The answer lies in genetics. The presence of melanin in the iris determines eye color, and brown eyes are dominant in genetic inheritance. In this article, we’ll explore the genetic background of brown eyes and their evolutionary significance.
Understanding Eye Color Genetics
Why Are Brown Eyes So Common?
Eye color is inherited through complex genetic combinations. The dominant gene for brown eyes ensures that most people around the world have this color. Even when a parent has blue or green eyes, their child may still inherit brown eyes due to genetic dominance.
The Evolutionary Advantage of Brown Eyes
Melanin in brown eyes protects against UV radiation, making them more common in regions with high sun exposure. This evolutionary trait helped early humans adapt to various environments while reducing the risk of eye-related diseases.
Conclusion
The genetic foundation of brown eyes is fascinating. As a dominant trait, they offer both beauty and protection, making them an essential part of human evolution. Whether inherited through generations or admired for their warm hue, brown eyes continue to be a remarkable feature.