Why do we have different Eye colors? + more videos |

Описание к видео Why do we have different Eye colors? + more videos |

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Colored part of the eye is called iris. Iris contains a pigment called melanin. Melanin is of 2 types, pheomelanin and eumelanin. The color of our eyes is dependent on the amount and type of melanin produced. If we have more melanin with higher concentration of eumelanin, then we will have darker eye color such as brown. However, if we have less melanin with higher concentration of pheomelanin, then we will probably have blue or green eyes.

Now, according to a study, the amount and type of melanin produced in our eyes, is mainly determined by 2 genes, OCA2 and HERC2 present on chromosome 15. Since these genes are inherited from our parents, we will probably have an eye color similar to our parents. But, note that sometimes, certain mutations in the genes can produce different eye colors.

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