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bassexpander
Joined: 13 Sep 2007
Location: Someplace you'd rather be.
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 Posted: Mon Sep 17, 2007 12:53 am Post subject: Mixed Korean/Western babies always have brown eyes? |
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Do mixed Korean/Western babies always have brown eyes?
Ever seen a 1/2 Korean with blue or green eyes? |
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Masta_Don
Joined: 17 Aug 2006
Location: Hyehwa-dong, Seoul
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| Posted: Mon Sep 17, 2007 1:15 am Post subject: |
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Blue eyes are a double recessive trait. Thus both parents would have to carry it in order for the kid to have it. Even still it would only be a 25% the kid would get it (if neither parent has blue eyes; 50% if one does). Genetically it would really hard in Korea for it all to work out to produce offspring with blue eyes. It would take a few generations of offsprings with more varied genes to see a change.
Check out here and go to the bottom and try different combinations.
http://www.athro.com/evo/inherit.html |
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MarionG
Joined: 14 Sep 2006
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| Posted: Mon Sep 17, 2007 1:34 am Post subject: |
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| Gene for brown eyes is dominant |
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Corky
Joined: 06 Jan 2004
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| Posted: Mon Sep 17, 2007 1:40 am Post subject: |
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| All the brown-eyed people sit in the front, all the blue-eyes in the back. |
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Masta_Don
Joined: 17 Aug 2006
Location: Hyehwa-dong, Seoul
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| Posted: Mon Sep 17, 2007 1:45 am Post subject: |
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| MarionG wrote: |
| Gene for brown eyes is dominant |
Yes it is but you could have a Brown/blue person (phenotype: brown) bred with a blue/blue person (phenotype: blue) and have a 50% that their offspring would be blue eyed. And this example is a little disingenuous since there are two genes that are known to control eye color. So four alleles are possible per person and then it starts getting complicated. That's why the link I posted earlier is nice. You can mix and match and see the likelihood of each outcome. |
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ticktock
Joined: 14 Apr 2005
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| Posted: Mon Sep 17, 2007 1:54 am Post subject: |
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| Actually I have. Her father's English and mother's Korean and when she was a toddler (that's when I first saw her) I actually thought she was the guy's daughter and the korean mother adopted as her own. She's now a teenager and she's got the most beautiful blue eyes but with Korean features which always fascinated me. Very rare indeed considering blue eye's a recessive trait, so I guess mother's a carrier though looking at the mother and the girl's maternal grandparents, you'd never suspect it. |
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Qinella
Joined: 25 Feb 2005
Location: the crib
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| Posted: Mon Sep 17, 2007 2:04 am Post subject: |
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| Corky wrote: |
| All the brown-eyed people sit in the front, all the blue-eyes in the back. |
That was a good video. Was posted on here before, right? |
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bassexpander
Joined: 13 Sep 2007
Location: Someplace you'd rather be.
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| Posted: Mon Sep 17, 2007 2:10 am Post subject: |
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Makes you wonder if any Koreans would happen to have some non-Korean genes in their bodies that could come out and make something like this happen?
I have heard that long ago, in the past, some Japanese people inter-mixed with western blood. Imagine, then, that one of these mixed Japanese comes over to Korea 100 years ago and has babies with a Korean woman (who passes the baby off as full Korean). We all know that at least the latter half of this story is most certainly feasible.
Could a gene be kept around for that long, and somehow materialize if a Korean woman from today had a baby with a Western guy?
My cousin has pitch-black hair, as does her husband (who is also very tan-skinned) as do all recent relatives in the past several generations (both sides). They gave birth to three dark-haired/dark-skinned daughters. Their fourth daughter has white-blond hair, and it shocked everyone, as well as blue eyes. |
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Corky
Joined: 06 Jan 2004
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| Posted: Mon Sep 17, 2007 2:18 am Post subject: |
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Jane Elliot.
Can't find the link though. |
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endofthewor1d
Joined: 01 Apr 2003
Location: the end of the wor1d.
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| Posted: Mon Sep 17, 2007 2:55 am Post subject: Re: Mixed Korean/Western babies always have brown eyes? |
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| bassexpander wrote: |
Do mixed Korean/Western babies always have brown eyes?
Ever seen a 1/2 Korean with blue or green eyes? |
my baby has brown eyes. but my friend's baby has bright blue eyes. he's half korean. |
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cbclark4
Joined: 20 Aug 2006
Location: Masan
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| Posted: Mon Sep 17, 2007 3:15 am Post subject: |
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| Masta_Don wrote: |
Blue eyes are a double recessive trait. Thus both parents would have to carry it in order for the kid to have it. Even still it would only be a 25% the kid would get it (if neither parent has blue eyes; 50% if one does). Genetically it would really hard in Korea for it all to work out to produce offspring with blue eyes. It would take a few generations of offsprings with more varied genes to see a change.
Check out here and go to the bottom and try different combinations.
http://www.athro.com/evo/inherit.html |
My Dad had Blue eyes my Mom Brown (Hazel) two of my sisters have blue eyes. My Mother's Mother had blue eyes. |
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anf1984
Joined: 03 May 2007
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| Posted: Mon Sep 17, 2007 3:21 am Post subject: |
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The stuff they don't teach you early on is that it's possible to have a different genotype than phenotype. As in, you could have a brown (dominant) and blue (recessive) gene and only express the blue gene... I have no idea how likely it is with eye colour but it's definitely something that occurs in a fair number of traits...
And as to the double recessive... that means it's just easy to be a carrier.... someone with brown eyes can still give a blue gene assuming they had a parent who either had blue eyes or at least carried one allele for it.... |
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dogshed
Joined: 28 Apr 2006
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| Posted: Mon Sep 17, 2007 3:33 am Post subject: |
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| anf1984 wrote: |
The stuff they don't teach you early on is that it's possible to have a different genotype than phenotype. As in, you could have a brown (dominant) and blue (recessive) gene and only express the blue gene... I have no idea how likely it is with eye colour but it's definitely something that occurs in a fair number of traits...
And as to the double recessive... that means it's just easy to be a carrier.... someone with brown eyes can still give a blue gene assuming they had a parent who either had blue eyes or at least carried one allele for it.... |
You can also get two genes from one parent, and sometimes some cells in your body are different from the other ones.
http://en.wikipedia.org/wiki/Mosaicism |
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anf1984
Joined: 03 May 2007
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| Posted: Mon Sep 17, 2007 3:42 am Post subject: |
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| The two genes from one parent thing is much more unlikely though... most trisomy is lethal... but there are of course, exceptions to this... the moral of the story- genetics are really, really complicated.... |
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cbclark4
Joined: 20 Aug 2006
Location: Masan
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