If there is no blue-eye gene in the brown-eyed parents, they cannot have a blue-eyed baby.
However, eye colour, like skin colour, is multi-factorial - it uses several genetic loci.
In reality, there are many shades of colour which still look blue, and many shades of colour which still look brown. Most people have a blend of both, but the brown is most noticeable. The easiest way to see if there are blended genes is to look at the relatives of the parents.
That being said, eye colour, again like skin colour, is most likely going to be influenced by the parents' colour. The chances are, that if both parents have blue eyes, then there are not many brown-eye genes around, and their child will have blue or pale eyes, not brown. If both parents have dark brown eyes, then chances are, the child's eyes will be brown. If they have light brown eyes, then the child's eye colour is less certain.
What has happened is that you have inherited the genes for blue eyes from both your parents. I would guess, though, that your eyes are not totally blue, and that they have shades of green. Compare them to a blue-eyed blonde if you know any, and see.
2007-02-05 14:09:19
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answer #1
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answered by Labsci 7
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Both of your parents had blue-eyed ancestors.
Since blue eyes are recessive (in a match-up of a brown and blue gene, brown will "win"), your parents have brown eyes. But your mom's eggs and your Dad's sperm include genes from all of their ancestors.
In your case, an egg of your mom's, that had the blue-eyed gene, was fertilized by a sperm of your Dad's with the blue-eyed gene.
Genetic traits often skip generations.
As a Latino, you probably have European blood.
Ignore those casting aspersions on your mother's sex life. She probably doesn't have a secret to tell you.
2007-02-05 14:32:22
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answer #2
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answered by tehabwa 7
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Blue is a recessive trait. Both of your parents must have has a recessive blue gene and by luck you got both.
2 Brown genes = Brown eyes
1Brown and 1 Blue = brown eyes
2 Blue = Blue eyes
2007-02-05 08:50:56
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answer #3
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answered by Karrose 5
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Apparently not. My husband and I both have brown eyes and brown hair. My husbands hair is almost black. Mine is more of a medium brown, but I dye it blonde. My son is blonde haired and blue eyed (and no I have never had an affair). Our daughter has my hair and my husbands eyes.
Blue eye's are a recessive gene. The probability of it coming out is something like 1 in four or 25% if you both have it. Sort of like tall people having a short kid, or two short people having a tall kid.
Some genetic diseases are the same way. If 2 people carry the gene, but don't necessarily have the disease, they have a 25% chance that one of their kids will have it.
2007-02-05 08:57:51
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answer #4
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answered by ? 6
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If both your parents have a recessive blue gene, then it's entirely possible for you to have blue eyes. For two parents who have brown eyes with a recessive blue (Bb), the possible combinations are (B = dominant brown, b = recessive blue): BB, Bb, bB, and bb - the final bb would be the blue-eyed offspring - a one-in-four chance.
2007-02-05 08:55:23
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answer #5
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answered by Anonymous
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People in your family who have blue eyes passed it on to you. You don't necessarily have to have brown eyes...it depends on what trait you get. Your mother or your father could have a blue eye gene in them that isn't recessive so it doesn't show over teh dominant one which is brown meaning that you got teh blue eye gene and it turned out to be dominant over the brown eye gene.
2007-02-05 08:55:03
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answer #6
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answered by iWantiT 1
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It could be a mutation. I met a brown skinned girl with the brightest blue eyes you've ever seen once and that was her explanation. She had one mixed both brown and blue. HS biology class would say your case shouldn't be possible, so it must be a mutation. Check to see if you have a history of this anywhere in your family tree.
2007-02-05 08:54:34
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answer #7
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answered by Heywood J Helpaguy 2
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your right. it is impossible to get blue eyes from two brown eye parents. i just learned about it in my Biology 1010 class. looks like you need to ask your parents a really tough question, cuz you didn't get your eyes from both of them. sorry.
2007-02-05 08:54:17
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answer #8
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answered by vampire heart 3
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it very possible its in your parents genes
2007-02-05 09:03:46
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answer #9
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answered by Lovely 4
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