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The total number of genes that contribute to eye color is unknown, but there are a few likely candidates. A study in Rotterdam (2009) found that it was possible to predict eye color with more than 90% accuracy for brown and blue using just six SNPs. [16] [17] In humans, eye color is a highly sexually dimorphic trait. [18]
Savoy blue (Italian: blu Savoia) or Savoy azure (azzurro Savoia), also known as Italian blue (blu italiano), is a shade of saturated blue between peacock blue and periwinkle, lighter than peacock blue. [1] Since the middle ages, it is the colour of the House of Savoy, the royal dynasty of the Kingdom of Italy from 1861 to 1946.
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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! The AAO says that it’s an inherited ...
An American-style 15×15 crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one ...
Eye color, specifically the color of the irises, is determined primarily by the concentration and distribution of melanin. 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 iris (pl.: irides or irises) is a thin, annular structure in the eye in most mammals and birds that is responsible for controlling the diameter and size of the pupil, and thus the amount of light reaching the retina. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm. Eye color is defined by the iris.
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