can an asian man and a white woman produce a blue eyed child?

Question

If a man of asian origin who has always had only black eyes in the family for generations marries a white woman who is blue eyed could their child be blue eyed? I heard blue is a recessive gene and for blue eyes both parents need to have blue alleles. Is that so?

Answer 1

I am an MD. You are correct. Blue eyes is recessive, so the Asian person must have a recessive blue gene present in his genetic makeup in order to have a 50-50 chance of passing the blue on to the child. If he is pure bred asian, this is essentially impossible. I have seen some Asians of Afgani or Kashmirian origin who carry the blue eyed gene. Unless he has this sort of genetic makeup in his blood line, then forget it. I had a friend once who was 1/4 Japanese with blue eyes, and yet he did retain a modicum of the Asian look, so depending on who the child marries, the grand children could have blue eyes.

Answer 2

Blue eyes is a recessive trait - so a white person with brown eyes can still produce a child with blue eyes if the right gene sequences or alleles match up during conception. Another way of saying it is that a brown eyed white person can still posses the trait for blue eyes, but it was not expressed due to the more dominant brown eyed allele. Blacks and Asians posses no light eye colored alleles, so there is no way these can be expressed except through interbreeding with a white person.

Answer 3

If the characteristic has occurred for generations then the chances is nada. To begin with eye colour is not determined, as some believe, by only one set of genes. It is actually determined by several. However, even if we assume that only one set of genes (known as gey) that has a dominant brown and recessive blue, then if they exist they will come out at least a few time over many generations. In fact, when doing his experiments, Mendel called plants that had the same characteristics for generation 'true breeders', and they are known to only have one version of the allele.

Answer 4

Yeah.
But get this:
Eye color isn't controlled by 1 gene.
Its controlled by many, at least 3 or 4.
This is polygenic inheritance.
So u will have to do dihybrid or trihybrid Punnett squares to get a simplified version of the real thing. U should see that if not all the alleles for the genes are dominant, there is a chance of a blue-eyed kid.
My AP Biology book told me this.

Answer 5

It's possible, however it's only a 25% chance b/c blue eyes are a reccesive allele.

----> B b
> B BB Bb
> b Bb bb

B= Black eye allele
b= blue eye allele

The mom and the dad must both be heterozygous if they want a blue eyed child.

Answer 6

Go to wonderquest.com. I remember reading an article about eye color genetics. I'm sure you could have a blue eyed baby. There are more than one genes that predict eye color. It's kind of complicated but I hope you can find answers....

Answer 7

Normally that's true, but in rare cases the dark eyed gene doesn't express itself, so the eyes can be blue.

Answer 8

yes, blue is usually a recessive gene, so it is highly unlikely for the child to have blue eyes unless someone waaaaaaay back in the father's family line had blue eyes. despite that, the eyes will probably be black.

Answer 9

My father had dark brown eyes and my mother has hazel/green eyes and mine are bright blue. So I guess anything is possible. My husband had dark brown eyes and our daughter has the same brown eyes. She is sad not to have my blue eyes. I have one cousin with the same blue eyes, so it must be a gene somewhere back in our gene pool.

Answer 10

It's possible for the child to have blue eyes. But, it is a real long shot. Out of 1,000,000,000 chances maybe once or twice.