Is it possible for two blue eyed parents to have a brown eyed baby?

Question

Thoughts?

Answer 1

High school biology taught me that two blue eyed parents can only have blue eyed children, because the gene for blue eyes is recessive.

It was the early nineties, so I'm unsure of the correct representation, but I think it was B for brown, and b for blue. To get the colour brown, you can either have BB, Bb, or bB. Since B is the dominant gene, it will always win over blue, so even if you have the gene for brown, and the gene for blue, your eyes will be brown.

The only way you can have blue eyes is with bb. Two blue genes. While it is possible for two brown eyed parents to have a blue eyed child (if they each give a child their b gene), if you and your partner both have blue eyes, you only have the genes bb bb to work with, so can only give your child bb.

At the time, they weren't sure what caused hazel eyes, but perhaps they've discovered more about it now?

Answer 2

HSK's mom gave the best answer. It is possible, but not probable. In fact, the stats are low on the possibility of two blue-eyed parents giving birth to a brown-eyed child.

But there's one more step to the process. The eye color of a brand new baby isn't the final color the baby will have a year or two down the road. It is common for babies to be born with blue eyes (lack of melanin). But it is just as common for babies to be born with nearly black eyes. Eyes will stay dark or blue until the cells develop in the eyes that reflect a certain color. It can take more than a year for the real eye color to come out. That has nothing to do with the eye color of the parents and everything to do with being a very small being with lots of developing to do.

Answer 3

Yes the scientific term for this is a mutated gene. It means that the offsping has features that are not from the natural selection. They may even come from previous generations. It seems like it would be harder for two brown eyed parents to have a blue eyed baby but in extremely rare cases it has happened. Other than that check the mailman, the milk man, the newspaper boy, hell check the guy at H&R BLOCK who does the taxes. Never know these days.

Answer 4

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.



A pigment called melanin determines the color of the eye.

There is still much to be learned in genetics about how eye color is passed along from generation to generation.

This is taken from about. com I hope it helps. Blessings.

Answer 5

Sure is. Not only possible, but very likely. Think of it as drawing from a bowl. Two brown eyed parents may increase the odds of the child having brown eyes, but there are still blue eye genes in the bowl.

Answer 6

Brown eye color is usually the dominant gene and blue is usually recessive and sometimes recessive genes can skip generations causing blue-eyed parents to have a brown eyed children.

Answer 7

Yes, sure. If someone in Parent's family has brown eyes (usually grandparents or great grandparents) they can have the color brown hidden in genetic because their eyes are blue. They can pass if they have it hidden inside like a code I have blue eyes from my mother but my code to pass to my children is brown from my father. (Example)

Answer 8

Of course.
Genes jump generations.
Somewhere in the ancestry,
someone has brown eyes.
If not, better check the mailman.

Answer 9

yes becuase of the genes in past generations

Answer 10

YES. MY HUSBAND AND I BOTH HAVE BLUE EYES, AND 2 OF OUR CHILDREN HAVE BROWN EYES.