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There is evidence that as many as 16 different genes could be responsible for eye color in humans; however, the main two genes associated with eye color variation are OCA2 and HERC2, and both are localized in chromosome 15. [10] The gene OCA2 (OMIM: 203200), when in a variant form, causes the pink eye color and hypopigmentation common in human ...
Central heterochromia is also an eye condition where there are two colors in the same iris; but the arrangement is concentric, rather than sectoral. The central (pupillary) zone of the iris is a different color than the mid-peripheral (ciliary) zone. Central heterochromia is more noticeable in irises containing low amounts of melanin. [32]
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What Is the Most Common Eye Color? On the other hand, brown is the most common eye color. According to the American Academy of Ophthalmology (AAO), more than half of all people have brown eyes ...
To test how someone’s eye color could determine their attractiveness, the research team recruited 300 heterosexual and homosexual men and women. Each participant’s eye color, as well as those ...
This is a list of notable people who have been documented as having heterochromia iridis, a condition when the irises have different colours. People who are frequently mistakenly thought to have heterochromia are not included, but may be listed in the Notes section.
A study of 1,023 students in Chile found that the most common eye color was brown-black: 71 to 89.4% and the most common hair color was brown from 65.8% to 66.8%. [8] In Spain, 57% are brown (7% of Spaniards are naturally blonde, 26% brunette, 3% redhead and the remaining 10% dark and light brown). [9]
A rare predominantly black cat with odd eyes. The odd-eyed colouring is caused when either the epistatic (recessive) white gene or dominant white (which masks any other colour genes and turns a cat completely solid white) [3] or the white spotting gene (which is the gene responsible for bicolour coats) [4] prevents melanin granules from reaching one eye during development, resulting in a cat ...