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  2. Eye color - Wikipedia

    en.wikipedia.org/wiki/Eye_color

    Hazel eye Hazel eye. Hazel eyes are due to a combination of Rayleigh scattering and a moderate amount of melanin in the iris' anterior border layer. [4] [35] Hazel eyes often appear to shift in color from a brown to a green. Although hazel mostly consists of brown and green, the dominant color in the eye can either be brown/gold or green.

  3. Champagne gene - Wikipedia

    en.wikipedia.org/wiki/Champagne_gene

    Champagne coloration is created by a dilution gene.. The champagne gene is a simple dominant allele responsible for a number of rare horse coat colors.The most distinctive traits of horses with the champagne gene are the hazel eyes and pinkish, freckled skin, which are bright blue and bright pink at birth, respectively.

  4. Human eye - Wikipedia

    en.wikipedia.org/wiki/Human_eye

    Hazel eye. Hazel eyes are due to a combination of Rayleigh scattering and a moderate amount of melanin in the iris' anterior border layer. [41] Hazel eyes often appear to shift in color from a brown to a green. Although hazel mostly consists of brown and green, the dominant color in the eye can either be brown/gold or green.

  5. How Rare Are Hazel Eyes, Exactly? - AOL

    www.aol.com/lifestyle/rare-hazel-eyes-exactly...

    The percentage of the population with hazel eyes may surprise you. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help ...

  6. How Rare Are Green Eyes, Exactly? - AOL

    www.aol.com/lifestyle/rare-green-eyes-exactly...

    For premium support please call: 800-290-4726 more ways to reach us

  7. Heterochromia iridum - Wikipedia

    en.wikipedia.org/wiki/Heterochromia_iridum

    Although the processes determining eye color are not fully understood, it is known that inherited eye color is determined by multiple genes. Environmental or acquired factors can alter these inherited traits. [7] The color of the mammalian, including human, iris is very variable. However, there are only two pigments present, eumelanin and ...

  8. Phenotypic trait - Wikipedia

    en.wikipedia.org/wiki/Phenotypic_trait

    For example, having eye color is a character of an organism, while blue, brown and hazel versions of eye color are traits. The term trait is generally used in genetics , often to describe phenotypic expression of different combinations of alleles in different individual organisms within a single population , such as the famous purple vs. white ...

  9. Oculocutaneous albinism - Wikipedia

    en.wikipedia.org/wiki/Oculocutaneous_albinism

    Oculocutaneous albinism is a form of albinism involving the eyes , the skin (-cutaneous), and the hair. [1] Overall, an estimated 1 in 20,000 people worldwide are born with oculocutaneous albinism. [1] OCA is caused by mutations in several genes that control the synthesis of melanin within the melanocytes. [2]