Can two blue eyed parents have a brown eyed child?

Question

if so, what are the chances?

Answer 1

Generally, two blue eyed parents cannot have a brown-eyed baby; HOWEVER, there are exceptions to every rule. If the dominant brown genes are suppressed for some reason, genetically "brown-eyed" people can look like they have blue eyes. Therefore, when they have children, they can pass on the brown eye gene to them and the children could have brown eyes.

This site explains it:

http://www.earthlife.net/insects/evolve.html

Answer 2

Eye color is an inherited trait influenced by more than one gene. In humans, three loci associated with eye color are currently known: EYCL1, EYCL2, and EYCL3. These genes account for three phenotypic eye colors (brown, green, and blue) in humans. Eye color is demanding, as all four genes must determine the same color for the eye color to be pure; otherwise a mixed color such as blue-green will result.

There are questions that are variations of this and most people almost every day and people are still under the impression that there is one gene that controls eye color. Scientific studies have disproved that for at least five years now. The answer is yes two blue eyed parents can have a brown eyed child.

I hope this helps to answer your question. As you can tell, while some progress has been made, eye color is a very complex, polygenic trait that is not yet fully understood.

Answer 3

I'm pretty sure not. Brown eyes are the dominant trait...and therefore you can't have any genes for brown if you present with something else. Two brown eyed parents however could have a blue eyed child if they both carry and pass on the recessive trait. But I'm pretty sure the reverse is just not possible. Sorry.

Answer 4

Of course...it depends, if the grand parent had brown eyes...they have almost a 50% chance of having a brown-eyed baby

Answer 5

Odd as it sounds, it’s much more common for brown-eyed parents to have blue-eyed children than for blue-eyed parents to have brown-eyed children.

That’s because brown eyes are dominant, and the eye color likely will have already shown up in a parent if the trait is in the gene pool. So absent the dominant brown-eyed gene, blue-eyed parents are likely to just keep on producing blue-eyed children.

However, blue-eyed parents can have brown-eyed children, although genetic processes for that possibility aren’t at this time well understood.

But why do blue eyes show up in children of brown-eyed people? This is because genes for blue eyes are “lurkers.” These recessive genes stay in the background until a certain combination of genetic material occurs—i.e., a contribution of a recessive blue-eyed gene from each brown-eyed parent.



Thus, even though genes producing brown eyes are dominant, it’s more common for brown-eyed parents to have blue-eyed children than for blue-eyed parents to have brown-eyed children.

Answer 6

I think it has to do w/ recessive genes, but I don't know the odds... I guess it would be a 1 in 4 chance because each parent carries 2 genes.

Answer 7

Yes it can happen. I am living proof. Both parents are brown eyed and I have blue. My brother has brown and we have the same parents.

Answer 8

It's possible as the brown eyes would be recessive in your case. I think the chances are 1/4

Answer 9

Sure if your parents/grandparents or his parents/ grandparents had brown eyes you have a chance, especially if his parents/grandparents did, males carry more genes for such stuff.

Answer 10

yes blue eyes is a recessive trait while brown is dominat