Can Two People With Blue Eyes Have A Brown Eyed Child And Why Or How Is This Possible Or Impossible?

High school biology makes it seem like genes and eye color are straight forward....however, this site (http://www.thetech.org/genetics/ask.php?id=29) begs to differ, and it is up to you to decide if you can believe this or not:
 
two blue-eyed parents can produce green or brown-eyed children. Eye color is not the simple decision between the brown (or green) and blue versions of a single gene. There are many genes involved and eye color ranges from brown to hazel to green to blue to…

How does eye color work? Eye color comes from a combination of two black and yellow pigments called melanin in the iris of your eye. If you have no melanin in the front part of your iris, you have blue eyes. An increasing proportion of the yellow melanin, in combination with the black melanin, results in shades of colors between brown and blue, including green and hazel.

What we are taught in high school biology is generally true, brown eye genes are dominant over green eye genes which are both dominant over blue eye genes. However, because many genes are required to make each of the yellow and black pigments, there is a way called genetic compensation to get brown or green eyes from blue-eyed parents.

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Dragon is right. Eye colour isn't simply determined by one gene, or by dominant and recessive allele inheritance. Eye colour is whats known as a polygenic trait. This means that more than one gene is responsible for the eye colour. There are lots of variations and mutations that can occur by interactions or differences between the responsible genes. This means that with few exceptions, parents with any sort of eye colour can theoretically have a child with most other sorts of eye colour. You couldn't accurately determine the father of a child by eye colour. If you know their blood types, that would be better.
 
Saying that, if you have blue eyes and your child has brown, if one of the possible candidates has brown eyes its probably slightly more likely they are the father than the other. But this alone wouldn't be enough to go on.

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Two brown eyed parents can have blue eyed children but two blue eyed parents can not have brown eyed children due to a chromosome mutation found in blue eyed people.

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Absolutely, Yes. Brown eyes are dominate over blue eyes and if there is family history of both blue eyes and brown eyes, you could have the gene for brown eyes even though you have blue eyes.

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Did you also know that a babies eyes can change color from the time of it's birth.in other words they can be blue and turn brown..eye color really does not tell who the father is.

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