What eye color is dominant?

Question

I have brown and my boyfriend has beautiful blue eyes. Also, with hair color, which parent carries the dominant gene for hair color?

Answer 1

I personally would just put the dominant gene stuff in the trash. There are way too many exceptions to the supposed rule, so it's really pointless to hash on it.

My mom has brown eyes, my dad washed out blue. Half my siblings have the same blue eyes, while 2 brothers have brown and I have whiskey. My son has hazel (which, BTW, is not a combination of blue and brown but a color in its own right). Hair goes the same way.

Answer 2

Brown is dominant but if there is a chance if you have at least one blue gene then there is the chance you could pass the blue gene and your b/f can pass a blue gene and your kid would end up with blue eyes. This would be possible even if two people had brown eyes but both had a blue gene in them. The same goes for hair where as brown more dominant over blonde but the same theory applies.

Answer 3

That's not really how dominate and recessive traits work. Let's say that Bb = blue eyes and BB = brown eyes. Your boyfriend's trait is at the top. Your trait is on the left. The other 4 "bb" combinations are the possibilities of eye color for each child you have with him...same thing goes for hair color.


____B____b

B__BB___Bb

B__BB___Bb

So, you have a 50/50 chance of having a baby with blue eyes. Also keep in mind that you have a 50/50 chance with each child. Your first child's eye and hair color will have no affect on subsequent children. I hope this helped.

Answer 4

no one parent carries the gene for "dominant" anything... it depends on each parent's genetic makeup.

brown eye color is dominant and brown hair color is dominant, so if one of you has those, chances are your children will have those.

however, if you in your genes somewhere have a trait for blue eyes, your kid may end up with blue eyes.

Answer 5

Brown is dominant no matter who has it, for hair and eyes. Your baby could still get blue eyes though if you carry the blue eye gene, such as one of your parents having blue eyes.

Answer 6

Brown eyes are dominant in genetics, but that does not mean that your child will not have light colored eyes.

Both you and your boyfriend have lets say two genes determining your eye color - one from your moms and one from your dads. I hope that much makes sense.

In order to have light color eyes, your boyfriend has to have both what are called recessive (basically non dominant) genes. In genetics they would abbreviate him as "bb" or recessive (two lower case genes).

Process of elimination makes the dominant genes abbreviated as capital letters. As long as one of your two genes are dominant, or determining you will have brown eyes, then your stuck with brown.

So you could be abbreviated in two ways. Either you are dominant on both sides, or "BB" or you are dominant on one side and a carrier for recessive on the other, or "Bb." Are you with me so far?

Your kids will be a combination of both you and your boyfriend so you do like a math problem with both sets of letters and you can get a percentage of what chance it is that each one of your children will get brown or light colored eyes.

I know this can get REALLY confusing. I remember all my genetics classes in college. I hope this helps a little. If you want more info, email me.

Answer 7

Brown is dominent but with your boyfriend having blue eyes, there is always the possibility to pass it on. If you have anyone in your family with blue eyes you carry the recessive for blue eyes as well. So with two recessives, you have a chance for blue eyes (Goes back to 10th grade biology!! :) ) My husbands father has blue eyes and his mother has brown eyes. He has beautiful blue eyes and his sister has brown. So, you could have either. You won't know until your bundle of joy arrives!

Answer 8

I think with things like eye color and hair color things get a little more complicated than just dominant and recessive genes. For example, my mother was blonde and my father had black hair, but I ended up a red head. Also, everyone in my family has blue eyes, supposedly a recessive trait, even my cousins who's father is black. I don't profess to be a genetisis, but that seems to suggest that there is more to genetics than the black and white of dominant/recessive.
As far as dominant and recessive genes do go, no one parent is more dominant than the other. You will each pass half down to your baby, and you never know which one of you will pass a dominant gene, if either of you do. Heres a good dominant gene theory you can check out.
Clasp your hands together with your fingers interlaced and see which thumb is on top. If its your left thumb, you have the dominant trait, if its your right, you have the recessive. Now, lets say the dominant gene is Gene A and the recessive is Gene B. In order to display the dominant trait, you must have a gene pair of either AA or AB. In order to display the recessive trait, you must have a gene pair of BB. One of your genes came from your mother and one of them came from your father. You will also pass one of your genes onto your baby, and your boyfriend will pass the other gene onto your baby. Say you are AA and your boyfriend is BB, your baby, by default will be AB, and will put its left thumb on top. If you are AB and your boyfriend is BB, your baby could either get AB, BB or another BB, and will have a two out of three chance of putting the right thumb on top. If you are both BB, so will your baby. If you are both AA, so will your baby. If you are both AB, your baby could be AA, BB, AB or another AB, and will have a 3 out of 4 chance of putting the left thumb on top.
Was that confusing? I just did a biology lab on this very concept. I am BB, my father is also BB, my mother is AB. Even though she posesses the dominant gene, she did not pass it on to me. She did, however, pass it on to my little sister, who is also AB.

Answer 9

You'd have to assess both of your families to find out what eye color could be dominant. There is no set rule as to which parent carries the dominant gene for anything. It's potluck.

Answer 10

Use the Punnett Square-it is more then just you have brown and he has blue-but do your parents have blue-or is there blue in your gene pool. What about his-is his blue eyes only or does he have brown eyes in his gene pool? Then it goes by chance-like i have 1 and four chance to have a child with blue eyes although my spouses and my eyes are shades of brown. So you have higher possibility of blue eyes if your side of the family has them too-and lower chance of blue eyes if he is carrying a brown eye gene.