Yeah, I would hate to have a doctor like House, despite the fact that I completely understand how that happens. (For your own sanity around suffering people you *need* to have barriers
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I don't think House is saying "Hispanics cannot have light-colored eyes"; I think he's saying "these particular parents can't have light-eyed kids". And not all brown eyes are created equal: HOW brown they are has a lot to do with at least three different gene pairs (bey 1, bey 2, and gey), plus probably even more genes that we don't know about yet. :)
But he's still wrong; it's still not possible to tell just from the eye colors of the parents, since the eye colors of the parents aren't going to tell you what gene pairs they're heterozygous for - only that they've got at least one brown allele on bey 2.
I'm going to elucidate because I kind of feel like it. bey/gey interaction is still not totally worked out, but the current blue/brown/green inheritance model ends up looking something like this:
you have bey 2, which can be BB, Bb, or bb you have gey, which can be GG, Gb, or bb.
G is dominant over b but subordinate to B.
Any of the following gene patterns will give you brown eyes: BBGG BBbb BBGb BbGG Bbbb BbGb
These will give you green eyes: bbGG bbGb
This will give you blue: bbbb
So, hm.
Let's assume that the parents are as heterozygous as possible: both BbGb, which will give them both brown eyes. Then possible combos are...well...everything. They could have kids with blue, brown, or green eyes. It's possible that the parents aren't all heterozygous and whatnot, but you cannot tell that from looking at their eyes.
To me it came off as one of the parents *wasn't* hispanic.
And thanks for the deeper explanation of the eye genes. I knew most, but not the finer points of G-B dominance.
My maternal great grandparents were Portugese and had dark brown eyes. They had children with eye color from brown to hazel to green. Nobody thought anything of it.
I guess what I'm getting at is, in my mother's family and amongst my hispanic friends, having seen so many people with a wide variety of eye color, if I saw a hispanic couple with a blue eyed kid, I wouldn't find it *that* wierd.
But at the same time, I understand why a lot of americans would think that all "hispanics" look alike -- dark hair, swarthy skin, dark eyes.
Like I said, both my parents have dark brown eyes. The thing is they each have one parent with brown eyes, as well, but they also one with blue eyes, and one with blue-hazel eyes. (Where the green of mine comes from, I'm still not sure, but the hazel is definitely in there, as one of my father's brothers also have hazel eyes.)
And television genetics sucks. As you can tell by half the people they cast as family members. *g*
Yes, House suXXors at genetics. I know a hispanic family pretty well. Mama A has the most beautiful tawny colored eyes. Poppa A has "black" eyes. The kids have black, brown, and hazel eyes. Amongst their hispanic friends I have seen grey, green, and hazel-blue eyes.
My mother once told me about a friend of hers she went to school with in El Paso. The friend was getting a scholarship based partly on her being Mexican-American, but when she went to the financial aid office about it, apparently the woman "helping" her refused to believe she was hispanic because she had light hair and hazel eyes. Yeah. Uh-huh. (I never knew if the woman got fired for being, you know, stupid.)
Can't believe that kid dropped all that weight in one week ... unless it's just water retention. Somebody else was saying that, too, but it was mentioned at the end that it had been over a week. Yeah, that's a lot of weight to lose in what's apparently a really short amount of time, but for a medical condition that's relieved (and they said the effects
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:)
But he's still wrong; it's still not possible to tell just from the eye colors of the parents, since the eye colors of the parents aren't going to tell you what gene pairs they're heterozygous for - only that they've got at least one brown allele on bey 2.
I am pretty sure I hate television genetics.
Reply
you have bey 2, which can be BB, Bb, or bb
you have gey, which can be GG, Gb, or bb.
G is dominant over b but subordinate to B.
Any of the following gene patterns will give you brown eyes:
BBGG
BBbb
BBGb
BbGG
Bbbb
BbGb
These will give you green eyes:
bbGG
bbGb
This will give you blue:
bbbb
So, hm.
Let's assume that the parents are as heterozygous as possible: both BbGb, which will give them both brown eyes. Then possible combos are...well...everything. They could have kids with blue, brown, or green eyes. It's possible that the parents aren't all heterozygous and whatnot, but you cannot tell that from looking at their eyes.
Reply
To me it came off as one of the parents *wasn't* hispanic.
And thanks for the deeper explanation of the eye genes. I knew most, but not the finer points of G-B dominance.
My maternal great grandparents were Portugese and had dark brown eyes. They had children with eye color from brown to hazel to green. Nobody thought anything of it.
I guess what I'm getting at is, in my mother's family and amongst my hispanic friends, having seen so many people with a wide variety of eye color, if I saw a hispanic couple with a blue eyed kid, I wouldn't find it *that* wierd.
But at the same time, I understand why a lot of americans would think that all "hispanics" look alike -- dark hair, swarthy skin, dark eyes.
Reply
Like I said, both my parents have dark brown eyes. The thing is they each have one parent with brown eyes, as well, but they also one with blue eyes, and one with blue-hazel eyes. (Where the green of mine comes from, I'm still not sure, but the hazel is definitely in there, as one of my father's brothers also have hazel eyes.)
And television genetics sucks. As you can tell by half the people they cast as family members. *g*
Reply
Yes, House suXXors at genetics. I know a hispanic family pretty well. Mama A has the most beautiful tawny colored eyes. Poppa A has "black" eyes. The kids have black, brown, and hazel eyes. Amongst their hispanic friends I have seen grey, green, and hazel-blue eyes.
My mother once told me about a friend of hers she went to school with in El Paso. The friend was getting a scholarship based partly on her being Mexican-American, but when she went to the financial aid office about it, apparently the woman "helping" her refused to believe she was hispanic because she had light hair and hazel eyes. Yeah. Uh-huh. (I never knew if the woman got fired for being, you know, stupid.)
Can't believe that kid dropped all that weight in one week ... unless it's just water retention. Somebody else was saying that, too, but it was mentioned at the end that it had been over a week. Yeah, that's a lot of weight to lose in what's apparently a really short amount of time, but for a medical condition that's relieved (and they said the effects ( ... )
Reply
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