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Saturday, December 1, 2012

Genetics Eye Color

Genetics Eye Color
He says in the Holy Qur'an: Have We his eyes * and tongue and lips [From: 8 - 10]Are obvious to any creature the gift of sight and vision ... and God created the Public many creativity creation of forms, colors and forms ..And we'll talk about the subject of eyes and different colors and different scientific reasons ...



* Genetics and eye color:
Eye color is the subject of much surprised researchers for centuries .. Even science has provided us with a better understanding of the color of the eyes,And how it is inherited.When it comes in predicting eye color of the child, for example, one can almost be sure that the child will be bornWith blue eyes. Children newborns are often with eyes Zarkao slightly darker with increased exposureTo the sun from the age of three years and usually settle in permanent communities, has changed color to becomeGreen, Hazel, dark brown, gray and black





The issue of eye color, and how transmitted from parents to offspring, has been a subject of debate among geneticists for decades.And thought for a long time that the eye color followed simple Mendelian inheritance pattern.
Overall, through the rules of Mendelian inheritance, eye color is inherited in a very similar way to the way that inherit hair color:Genes for dark colors are dominant - and this means that the qualities (or phenomena) as a symbol of the primacy of the attributesEncoding genes for color lighter.



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Gaining eyes substance called (melanin) produced by the body as a kind of dyes to the skin and hair and thisColors vary from one person to another.Every part of the melanin has a dark brown color, if met these molecules heavily became dark brown eye color.And if you are afraid of density was brown in color, opening the same way gaining the eyes of some people the color blue.Because very light Malaninha material, and therefore reflect the color blue, which derives from the reflectionSunlight on the air with its blue sky and water and dust particles stuck in the air.Thus molecules absorb light eye melanin different colors in the light,The show blue alone


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* Scientifically eye colors are divided into two sections:
1) eyes a colored eyes: green, horny and infrastructure2) The eyes of others are colored blue eyes


Merely cause disagreement eye colors to two reasons: synthetic hand and genetically
The first reason; compositional terms, individuals with blue eyesContain iris have only two layers, while individuals with colored eyes iris contains two layersIn addition to the third layer earn color eye color is blue, and note the gradient and the difference in color colorfulDue to differences in the density and thickness of the foam in between the layers of the iris so we find in eye color gradient.

In genetic terms, we find that the colored eyes model genetic AA or Aa as the dominant attribute is the eyesInc. A colorful and if met dominant gene with another recessive produces individual colored eyes, and the individuals with blue eyesPossessing genetically models is aa meeting must Mtnhieddin genes for the emergence of the blue color of the eye.
Blue permission Eyes are discolored eyes unlike prevailing in society


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* Some interesting scientific facts about eye color:
Perhaps you are aware that brown is the most common eye color in all parts of the world, but did you know that the colorGreen largely is considered the rarest? In fact, less than 2 percent of the world's population has green eyes.But as one considers Turkey has the highest percentage of citizens who have green eyes by 20 percent.There are a number of countries - generally located in Asia and South America, and the Middle East - where green eyes are almostBe completely absent in the population.
Did you know that blue eyes are the most common eye color of the Caucasian population, more than black, and Venetian,And gray, and green .. In fact, more than 80 percent of the population of Iceland color of their eyes either blue or green eyes.There are people who has appointed a blue and green, and some of them also there has in some eye drops or dark Alhlat .. is a different symbolic qualitiesWe refer to the important information is that there is no pure color black eyes .. & this requires the existence of Alsabgp matter by complete ..This is impossible .. but you may see the color of dark brown eyes tend to black .. but it's not black!
And some of the people; especially in light of these developments are using contact lenses .. to correct considering dispensingGlasses and to impart color
In conclusion not only say Hallelujah and praise Sobhan Allah Almighty created man in the best stature .. God Hassan created also improved created ... Amen

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