Is it common for parents who both have dark eyes and dark hair to have a child with blonde hair and blue eyes?

Question

Is it a recessive gene?

Answer 1

It's reasonably common. I had fair hair when I was young but it went brown and now is almost black.

Also, blue-eyes is a recessive gene, which means it is not dominant. My father has brown eyes and my mother has blue, but I have blue. That means that my father must have one blue-eye and one brown-eye gene, and he's passed the blue-eye one on to me. My mother must have two blue-eye genes or her eyes would not be blue (recessive, see?) so she must have passed two blue-eye genes on to me.

So I have two blue-eye genes and my eyes are blue.

Basically both parents must have one dark-eye and one blue-eye gene, and both have passed the blue-eye genes on to the child: a 1/4 chance.

When you have two blue-eyed parents with a brown eyed child, then it's time to ask questions.

Answer 2

Depends on what you mean by common.  It certainly happens.  Hair color and eye color are interesting in that they are not controlled by a single gene.  For hair color, there are 4-6 genes that interact to get your result.  For eye color it is 14 genes that interact.  Some of these genes have dominant/recessive pairs and some have equal pairs and some have nullifying pairs.  This gives the great panopoly of eye and hair color combinations throughout the world.  Even in countries like China where the vast majority (98%+) have black hair and brown eyes, there are people with other hair and eye color combinations.

Answer 3

It's not common, but it happens. Yes, it's a recessive gene. My sister and her husband both have dark brown hair and dark brown eyes. They have 6 little girls. One is blonde and blue eyed.  The rest are all dark. And it's obviously his child though because it looks JUST like him. So, it happens. All it takes is for someone in the family line somewhere to have the same coloring, and it just shows up like that all of a sudden. But we still kidd her about belonging to the milkman!

Answer 4

no its not common i think its impossible

Answer 5

We are dark and have 1 child with blonde and blue and 1 child with blonde and green, the other 2 are both dark like us.

Answer 6

The more surprising was some blonde haired parent takes a completely Asian looking, black hair and eyed kid. What happened to them?

Answer 7

Its not impossible. The dark gene is dominant but it is possible that both parents have a fair gene and therefore the child could get the fair gene from both parents and be blonde and blue eyed. Also lots of children have blonde hair that gets dark as they get older.

Answer 8

Yes, it can happen.

See, pigments, such as in hair and eyes, is controlled by melanin. So it is possible for two dark-haired dark-eyed parent to have a blond, blue-eyed child, if the child receives ALL of the parents genes that have the least amount of melanin.

The other possibility for this to happen would be if the child has blond hair and blue eyes, but it darkens as they age to other colors.

Why? Well, ever notice that most infants are born with 'blue eyes'? In actuality, babies aren't born with blue eyes... that is a myth! See, when a baby is born, they haven't finished developing yet; the melanin hasn't entered their eyes, so it appears to be clear, or 'blue.' As they mature, their eyes develop, and may become darker colors. This is why a couple with dark hair and dark eyes could have a lighter complextioned child.

Answer 9

It can happen. Both my parents have dark hair, in fact most of the family (cousins, aunts etc) on both sides have dark hair. No blue eyes, either. Except for my grandfather (and his relations too, the ones I have met) - blue eyes and blond hair. I am also blonde with blue eyes. My son is, too, and add to the mix his dad's side are all dark haired and no blue eyes either, then I figure the blonde/blue eye thing is either a recessive gene or something.

Answer 10

Yes it happens, both my parents have brown hair and my sister used to be bright blonde, although it's changing to brown now as she gets older. Maybe this will happen to the child you are talking about.

Answer 11

Yes go to the 6th grade in ANY "Indian school" and the biology teacher will clarify that it is yes. (and the recessive gene.)

That was what I was taught.

{They used to teach about the white mice and a black mice as partners.}

Answer 12

yes its a recessive gene but it is possible, specially if there are close members of the family with blond hair and/or blue eyes.

if the father has dark hair for example so he is either BB or Bb, and same applies for the mother.

if they have the recessive gene then they will be Bb.

on crossing Bb from the father with Bb from the mother the result would be: BB, Bb, Bb and bb.

The bb is the child with blond hair. the same applies to the eye color.

so yes it is possible. hope this helped

Answer 13

It is fairly common,  The deciding factor is not the parents contribution of genes, the deciding factor is where their genes came from,  the grandparents and their parents and so on.

Answer 14

Yes. It is a recessive gene.

My husband and I are both dark haired and we had a boy with strawberry blond hair and green eyes....

Looking back in his family history, we found not far past another throw back person, and just before him, Prince William of Orange, no less, who had a mop of red hair when he was young....

Royal blood, no less and here, in our boy it popped up again.

Answer 15

Yes, it's a recessive gene. It doesn't happen all the time, but it can happen. If you or the other parent have people in their family with blonde hair and blue eyes, they carry that in their gene pool, but because the parent does not show these, they are recessive, not dominant.

Both my parents have brown hair and brown eyes. I came out with brown hair and brown eyes. My little brother, however, came out with brown hair and blue eyes. My grandfather has blue eyes, so my mom carried that recessive gene and passed it on to my brother, which is dominant in him.