Can parents with brown eyes make a baby with blue eyes?

Question

I want to know which is dominate? If the parents with mother has blue eyes and father has brown, what will the childs eye color be, Is blue the dominate color?

Answer 1

Brown is usually dominant. But if the father has blue eyes somewhere in his gene pool there is a chance that the baby could have blue eyes. Not likely, but possible.

It is also possible for two brown-eyed parents to have a blue/light-eyed child. Not common, though.

Answer 2

Yes, but only if both parents carry the gene for blue eyes. Brown eyes are dominant, which means that a child only needs to inherit one copy of the gene for brown eyes to be expressed. Blue eyes are recessive, which means that the child would need two copies of the gene in order for the blue color to be expressed. What color the child's eyes will be depends upon whether the father has the gene for blue eyes; if he does, there is approximately a 50% chance that any child the parents conceive will have blue eyes (since the mother in your case can only contribute the gene for blue eyes); if he does not, then there is NO chance the children would have blue eyes, because brown is dominant.

Answer 3

Blue is not a dominant color, but brown is. However, it IS possible your baby could have blue eyes.

Almost all babies are born with dark blue eyes. This is because the pigment that gives the eye its color has not yet developed. Over the next 4 to 8 weeks you will notice the eye changing to its permanent color. Usually the eye color becomes permanent by 3 months of age. Some hazel colored eyes will start out blue or green and will get the hazel color around 6 months and this is why some relatives will tell you that the eye color can change at 6 months. Predicting eye color is a little science and a little guess work. Everyone has 2 genes for their eye color and the combination of these genes determines the eye color. The main colors are brown, blue and green. Your baby has received one eye color gene from each of his or her parents. The brown eye color gene is dominant over both the green and the blue. The blue and green eye color genes are about equal. This means that if your baby inherits one brown eye gene and one blue eye gene, then your baby will have brown eyes. This also means that in order to have light colored eyes (blue or green), your baby must have two light eye color genes. That's the science. The guess work is which eye color gene each parent will give their baby.

Answer 4

Brown is the dominate color, but blue is resessive so you could have a blue eyed baby if the father has a recessive blue gene. So even if the dad, his parents, and their parents, had brown eyes, his great grand parents could have had blue eyes and passed the blue eyed gene hidden by the brown gene until your child is born.

If the mother and father both have blue eyes, the baby will have blue eyes because the only way to have blue eyes is to have two of the blue eyed gene. Here is a little graph for you -

B=Brown
b=Blue

B + b
| (50/50 chance of brown or blue if the B has a recessive blue gene)
B + b
|
b + b
|
b (100% chance of blue eyes because of nothing to override)

Answer 5

Brown is the dominant color, but it is very possible to have a blue-eyed baby, especially if there are blood-related family members with blue eyes.

If the mother has blue eyes, then that means that she has two recessive genes (bb), If the father has brown eyes, then we only know for sure that he has one dominant gene (B?). If he got the dominant gene from both parents, he would be (BB) and the baby would have brown eyes, but if he got one recessive gene (Bb), then there is a 50% chance of the baby being blue-eyed.

This is a basic Punnett Square, taught in high school biology. The top row is the father's genes, and the up and down row on the left is the mother's genes.

- B - B
b Bb Bb
b Bb Bb

OR

- B - b
b Bb bb
b Bb bb

Hope that helps!

Answer 6

Brown eyes tend to predominate over blue, but its not unheard of for a blue eyed person and a brown eyed person to have a blue eyed child, especially if the brown eyed parent carried a blue gene from his/her parents. Its the exception rather than the rule though. My 13 week old son still has blue/grey eyes but me and his dad both have dark hair and brown eyes - only my other half's father has blue eyes and my grandmother, everyone else has brown in the family, so we're expecting his eyes to go brown.

Answer 7

I do not know the correct stats, but I have brown eyes and husband has blue. We have had 5 children and out of the five children only one has brown eyes. All the others have a blue/green color. I think it also has something to do with the color of our parents eyes.

Answer 8

Yes. Brown in more dominant, but if there are blue eyes in either of the parents dna (from there own parents or grandparents etc) then the blue can turn up sometimes. Its happened to people I know and in my family, and the eyes are true blue in the child, whilst siblings and the parents have brown eyes. Its luck of the draw, so to speak.

Answer 9

The very simple way of telling this is brown is dominant and blue is recessive. BUT! There are many factors that affect eye color. If you have one set with brown factors and one set with blue factors, and your significant other is the same way and the baby gets the blue set, it will have blue eyes! You could have a child with any color of eyes possible! it all depends upon your genetics!

Answer 10

Yes, my family does that all of the time, brown is a dominant color, but never forget about mutation and adaptation. That can play a major role in eye color determination. My mother has blue eyes and my father had brown eyes, mine are light brown or hazel depending on the light.