Thursday, December 10, 2009

Our Baby's Eye Color?

I'm 16 weeks pregnant now and I'm just dying to know what my chance are for my baby to have his/her dad's eye color. He has gorgeous crystal greenish sometimes blue eyes and mine are hazel. His mom has blue/green eyes, his dad and sister have brown eyes. I don't know about his grandparents off-hand. My dad has green/blue eyes and my mom and most of my siblings have brown eyes. I have 2 grandparents with blue or green eyes too on my dad's side. Please ONLY answer if you know true information about genetics, dominant/recessive genes and percentages of how they are transferred to your children/what the chances are of them being green/blue. Thanks! :)Our Baby's Eye Color?
Well, its really not that tricky. Brown eyes are the dominant trait. So anyone with brown eyes are what we would call homozygous dominant OR heterzygous (meaning they have a dark eye gene from one parent and a light eye color gene from the other, but the DARK (brown) will always show, this is called the PHENOTYPE). So since both you and your baby's dad's eyes MUST be homozygous recessive (because he has light eyes). Your baby's dad got a ressesive gene for light color eyes from his mom and his dad MUST be Heterozygous (carries both genes). You also have light colored eyes so you are homozygous recessive also(meaning your mom gave you her recessive gene NOT the brown dominant gene). THIS MEANS NEITHER OF YOU COULD EVEN HAVE THE DOMINANT GENE TO CREATE BROWN EYES. You will each give your baby a recessive gene for light color eyes.





YOUR BABY WILL HAVE BLUE, GREEN, OR HAZEL EYES!!! 100% No way to tell which color of those because it is simply a trait of light or dark.





Also, male pattern baldness comes from ones mom not their dad, if a mans mother has lost her hair or has very thin hair he has a good chance of becoming bald later in life. Just thought I would throw that out there for you too as a bonus answer!Our Baby's Eye Color?
Eye color (and for that matter hair and skin color) are known as a POLYGENIC trait. This means that it takes more than one gene to determine the color of one's eyes. Those that have said that it is a simple matter of dominance are misleading you as that implies that there is only one gene involved and thus it is a mere either/or. Polygenic traits rely on multiple alleles, the distance between those alleles, how they interact with each other, etc.





Blue and the variant Grey are the ';base'; colors so to speak. This is the hue without the presence of melanin or pigment.





Green eyes have some melanin covering the blue. The blend of the blue undertone and the scant melanin creates the green appearance. There is no green pigment.





Hazel eyes have a little more melanin than green, resulting in that sort of golden appearance.





Brown/black have the most melanin that is completely obscuring the blue base.





It is possible for two blue eyed people to have a brown eyed baby. It is rare but it DOES happen.





Given your eye color is lighter and his is also lighter, you are MORE likely to have a child that has lighter colored eyes. This does not mean the kid does not have a chance for brown, obviously there are brown eyes in both of your family background.





I'll end this with something anectdotal. My mother has green eyes (her father had brown and her mother had blue...lots of all three hues in her family). My dad has brown (his father had blue his mother had brown lots of blue and brown and some green on both sides). They had 3 girls. I have green eyes. One sister has blue eyes. The other sister has brown eyes.
Blue is recessive, brown is dominant. I can't give you the mathematical percentage, but it sure sounds like you have a good chance of having a blue-eyed baby.





Just so you know, MANY babies are born with blue eyes, and they change within the first year, so although it may be born with blue, it might well end up different. That said, given your family structure, I'd say you have a good chance of having a blue one.





Congraturlations!





And, for what it's worth - be happy if your baby is healthy. Eye color is nice, but a healthy baby is more important. Do the right things, and enjoy your little one!
What will you do if baby's eyes are not the right colour.........put it back where it came from ?
You can't tell with eye color, it doesn't just rely on whats more dominant or recessive there are more factors. I don't think that anyone can tell you what is most likely. You'll just have to wait and see!
Brown. Brown is a domininent gene, while blue is recesive so if you have brown your siblings are going to have brown eyes to
If yours are green then you can carry a blue gene and a green gene or two green genes. The same with him. You can produce a blue eyed child if you both give a blue gene or if one of you gives a green gene and the other a blue then the baby will have green eyes. Brown is dominant but neither of you would carry that gene. Green is dominant over blue so each of you has to have at least one green gene. The odds are that he will have green eyes.

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