I was wondering what color eyes my child is going to have. I did some research which said that brown is dominant over green and blue, and green is dominant over blue. From what I understand, there are two genes that govern color of the whole eye, a brown/blue and a green/blue. In order to have blue eyes, you must have no brown genes and no green genes. In order to have green, you must have no brown genes. There is also another gene that governs the center of the iris being brown or not. I couldn’t find much information on that, but I’m guessing this gene is responsible for people like me and my husband who have blue and green eyes with brown flecks in the center. Since I have green eyes and my husband blue, according to what I’ve read, we should have either a blue or green eyed child, since neither one of us has brown genes to pass on (except for the brown center fleck gene). However, one of my husband’s daughter’s from his first marriage has dark brown eyes. How is that possible, since her mother has green eyes? She pretty strongly resembles him in facial features and body shape… but they divorced because of her infidelity, so it’s not entirely out of the question that someone’s else’s genes are at play here. He’s always assumed the kids were his because they look like him. Is there some explanation for a blue eyed and green eyed person having a brown eyed child?
my mom has blue eyes and my dad, greenish hazel. Me and my brother have blue eyes, my one sister has green eyes, and my other sister has greenish hazel eyes. From what I’ve been told in science classes, two blue eyed people cannot have a brown eyed child. I’m not sure exactly where green fits in there, I just know that blue is complete lack of pigment and green is a little bit of pigment. So your children should have blue, green, or maybe grey eyes. As for a blue and green eyed person having a brown eyed child, I don’t think it’s possible. I’d bet she was fooling around on him. But I’m no geneticist, so I could be wrong.
Ooh, this is neat!
I’m not a geneticist either, but from what I’ve read, eye color is too complex to be entirely explained by dominant and recessive genes. There have been documented cases of two blue-eyed parents producing a brown-eyed child. No milkman involved, and no one knows why.
Those linked sites say that geneticists cannot yet explain grey or hazel eyes. I’ve often heard people referring to green eyes that look hazel to me, or to hazel eyes that I’d swear are green. Could his ex actually have hazel eyes instead of green?
4 in my family: Mother, Father, Sister have intense green eyes. Mine are pale blue.
Deja vu! I asked this same question when I was expecting my own little angel. Unfortunately I got a little demon instead (but she has my eyes). 
Anyway, for your further elucidation: Baby Blues.
Oh yes, and congratulations on your own little bundle of joy!
Actually, in high school, while we were learning the genetics thing in Biology, we were told that green eyes were really blue eyes with bits fat in them.
…I think the milkman may have gotten away with one there 
That’s easily explainable if the gene for blue is recessive as compared to the green. A recessive gene can be carried silently for generations before it’s expressed. Example: Mom & Dad both have 1 gene for brown (or green) and one for blue. Only if baby gets a “blue” gene from both – a one in four chance – will her eyes be blue. But it’s possible.
It is possible for a person to carry the gene for brown eyes, yet not have brown eyes due to some other disorder that affects their ability to make pigment. Such a person may have green, blue, grey, or hazel eyes, but pass on the gene for brown to their children without passing on the pigment-disrupting gene.
It would be a rare situation, but it is possible.
The upshot is that while MOST of the time eye color is explainable by the brown dominant/blue recessive model, it does not apply in all cases. You should be careful about making assumptions regarding paternity in the cases of pale-eyed people have children with dark eyes.
well. my mom had green/hazel and my dad has dark brown - they got 3 browns and one hazel. i am one of the browns, mated with a blue/hazel and my son has grey/green/blue eyes.
Mom and dad are blue. I somehow ended up with the brown flecks you mention. Depending on the light and who’s looking at them my eyes have been called green, blue or gray. So, it must be one of those “in between” colors.
I have brown eyes, my son’s mother has blue eyes, he has blue eyes.
No chance of anyone jumping the fence as it was a sperm donation.
There’s nothing odd about that though-- it just means you are a brown/blue genotype. You just happened to pass on your blue gene to your son instead of your brown gene. You yourself don’t have blue eyes, because brown is dominant.
In regards to the rest of the postings…what exactly is the definition of Hazel eyes, anyway? Some people say greenish brown, but my mother always said she had hazel eyes, and hers were bluish green. My eyes are yellowish green, like my father’s, except he has bigger brown spots that I do.
I’ve been told my stepdaughter’s mother has “Brownish green” eyes, which I guess is hazel. I’ve never seen them, but my younger stepdaughter has the same (i’m told) eye color, which I say is green. However, yesterday at church, someone looked at her and said “What beautiful brown eyes she has!” Are there any theories onwhat hazel is? Simultaneous expression of green and brown?