what are the odds of two blue eyed parents having a brown eyed baby?

Answer 1

The odds are fairly low, as brown eyes are a dominant gene. However, human genetics is pretty complicated, so it is indeed possible.

Please note the SOURCE below, which confirms this fact.

Answer 2

It depends on genes. If either of your parents or grandparents had brown eyes it is possible, also if you have any siblings with brown eyes it can show a pattern. Brown (and it's varying shades) is the dominant colour, then blue (and it's varying shades), green is a 'mutation' of blue i.e. supposed to have blue but have green. If you carry the genes it would be a one in 4 chance ( if both partners have same/similar traits) depending on other factors and dominant/recessive genes.

Answer 3

i read somewhere that researchers at the university of Tromso have reported that blue eyed men prefer blue eyed women. if a blue eyed couple produce a brown eyed child laws of genetics indicate that she almost certainly cheated on her partner. so scientists believe blue eyed men may have learned to value the trait in women to help them know their own children

Answer 4

There is NO chance at all. Blue is a recessive gene.. which means both parents have and show two recessive genes. Remember those boxes from biology?
Brown eyes are either BB or Bb. Blue eyes are bb, that is all they can be.. if both parents are bb and bb.. then there is no way to get a BIG B in there anywhere!! They might be a hazel or greenish blue, but definately not brown!

Answer 5

pretty close to zero.
It is proven scientifically the 2 blue eyed parents have almost a zero chance of having a brown eyed baby.
For instance, my father has blue eyes. He has 6 children and the 3 mothers of his children all have blue eyes as well. He has 5 blue eyed children and 1 green eyed child.
His mother had brown eyes and his father had blue eyes. His sister has brown eyes and his brother has blue eyes.

Answer 6

close to 0 its nearly a genetic impossibility. Blue eyes is a recessive trait, which means you have to carry the blue gene from both sides of your family. This means that the only genes the parents have to give a blue genes. There fore there is no brown gene in the mix and no possiblity of brown eyes.

Answer 7

I`m not sure what the odds are but....Me and my husband both have hazel eyes and our daughter and son both have blue eyes!!! Hope #3 does too!!

Answer 8

Pretty close to impossible. I think they can have a green or hazel eyed child, especially if one of their siblings has green or hazel eyes, but there is a VERY VERY good chance that the baby will have blue eyes.

Answer 9

you have asked such an interesting question, I hope I can give an answer worthy....

can two blue eyed parents have a brown eyed child? YES most definitely....

I saw the other answers.... going by what they have said? then by those standards two brunettes can not possibly have a blonde baby....ummm.... last I saw? it is possible...

DNA is so simple, so complex and the variations, combinations... well they are as diverse and vast as the stars in the night sky.... know what? we can't even see all of those... we can't possibly be able to know the outcome with any given couple, family traits...

this is such a facinating topic....!
I love learning.. and traits, recessive/dominate, dna, hereditary.... they have held my attention for wow... so long.... since I was seven/eight?
first intro I had to hereditary, genes and DNA was third grade, I was a year early; seven when I started that grade, anyway...... we had to do a chart in it the parents both had straight, brown hair; one had hazel eyes, one had blue.. one had dimples, one did not..... both left handed and other things like the tongue roll, freckles and on.... they had four children; our job based on that info was to determine the traits of each of the four children.....

I thought I should have easily aced that... since I was oldest of four and my parents fit that info perfectly to a "T" I for the things such as rolling tongue? I just went thru and interviewed each member of the family..... for observation? I wrote down that one to two would be blonde, three would inherit straight hair one would have curls... two would have blue eyes one green/brown hazel and one green/blue hazel.... I determined only one would have dimples and the little cleft in chin..... one would be leftie, two righties and one both (ambidextrist? spelling sorry) my teacher failed me.... I asked why, he said it would be impossible for them to have any blondes, breen/blue hazel would never happen, nor would the curls happen with those parents..... and three or four would be right handed due to the recessiveness...... I never voiced the next thought..." I am an impossibility?" I knew then that the teacher could not possibly know it all... I knew my family right? so I started reading, devouring... info... observing families and traits... they have come so far in this field... but they have barely touched the surface still....

I have six children.. my first husband has brown eyes, black curly hair... he is hispanic, I am a mutt... mostly German... we are lefties... I have curly blonde hair.... three of my children are from this marriage... going with straight dominate/recessive? I should have a house of brown/brown/curls all around... nope.. two have blonde curls... one has brown eyes... one has hazel green/brown and one has hazel brown with soft gold and green...
second marriage? he has straight brown hair blue/green hazel (like me) right handed... italian/irish....people mistake him for Tom Cruise... seriously....! lol.. anyway.... three children... two are blondes... all three have curls.... one has green/brown hazel, one blue/green hazel and one has blue eyes.... one might be right handed even!

the way that breaks down? is that this has broken all the rules most of the answers I read here...... according to those? my children are as much an impossibility as I am.... well? I am here.. so are they.... must be more than possible if the "recessives" keep dominating... must be more to it...

I know this is already pretty long... sorry about that.. but? I found a pretty interesting site and here is a copy/paste and the link;

Originally, iris color was thought to be a simple trait—one governed by a single gene with multiple forms, or alleles, corresponding to each color. In this scheme, blue was thought to be recessive, requiring two copies of the blue allele in order to be displayed. Therefore, two blue-eyed parents could have only blue-eyed children, since each parent had only blue alleles. However, repeated observation of brown-eyed offspring from two blue-eyed parents showed this view to be wrong. Iris color is likely to be a polygenic trait—one governed by at least two genes and possibly more.

http://www.bookrags.com/Eye_color

too late for me to say "long story short" but; yes.. it is very possible for two blue eyed parents to have a brown eyed baby....

thank you for taking the time to read thru this
and the op. to share my views and reasonings for my answer...
to any I annoyed with the length? I apologize... it is not my intent....
hope this has cleared up your questioning
good luck in all

oh below I have added another link to another site about hereditary traits that was fairly interesting..... not about eye color though;

http://student.biology.arizona.edu/sciconn/heredity/worksheet_heredity.html

Answer 10

well it depends how old is the baby if it is a new born ...they have darker eyes that get lighter later on. My husband has dark brown eyes and I have blue. My daughter came out with dark eyes that trurned blue later on. other then that I dont know.