| Black and White Twins - article (link) - Click HERE for Original Thread |
| 83b18b1slow |
Black and White Twins
quote:
The odds of this happening are 100 x 100 x 100 - a million to one.
Neat. Hope it ain't a repost. |
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| DelSoln |
| That is pretty incredible. |
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| BlueTurboEGG |
| That is amazing... Talk about dominant/recessive genes!. |
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| Billy |
| That's crazy. :eek: |
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| the_fornicator |
she probably got dv'd.
the boyfriend doesn't know yet. |
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| bigmack000 |
quote:
Originally posted by the_fornicator
she probably got dv'd.
the boyfriend doesn't know yet.
dv'd ?? |
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| the_fornicator |
DV'd = stuffing two snausages in the meat taco.
a la DVDA. no? |
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| Bad Egg |
quote:
Originally posted by BlueTurboEGG
That is amazing... Talk about dominant/recessive genes!.
I have seen this in a family I know, the mother was of mixed black/white background, the father was pure Dutch. One sister was as black as Whoopi Goldberg, and the other brother and sister were as platinum blond/blue eyed as you would expect from a Dutch family.
It brought on a few questions over the years and YES, it was the same father... |
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| seevik |
| k if its a million to one odds? wouldnt thre be lots more kids like this? since there is 6 billion ppl |
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| Bad Egg |
quote:
Million to one odds
The odds against of a mixed race couple having twins of dramatically different colour are a million to one.
Skin colour is believed to be determined by up to seven different genes working together.
If a woman is of mixed race, her eggs will usually contain a mixture of genes coding for both black and white skin.
Similarly, a man of mixed race will have a variety of different genes in his sperm. When these eggs and sperm come together, they will create a baby of mixed race.
But, very occasionally, the egg or sperm might contain genes coding for one skin colour. If both the egg and sperm contain all white genes, the baby will be white. And if both contain just the versions necessary for black skin, the baby will be black.
For a mixed-race couple, the odds of either of these scenarios is around 100 to one. But both scenarios can occur at the same time if the woman conceives non-identical twins, another 100 to one chance.
This involves two eggs being fertilised by two sperm at the same time, which also has odds of around 100 to one.
If a sperm containing all-white genes fuses with a similar egg and a sperm coding for purely black skin fuses with a similar egg, two babies of dramatically different colours will be born.
The odds of this happening are 100 x 100 x 100 - a million to one.
The quoted figure of a million to one includes the 100 in one chance of fraternal twins, so it is not as statistically rare is it seems.
If you know a few mixed race families of a few generations, it is fairly normal to see some racial characteristics pop back up after skipping a generation or two. If you know what to look for you will probably see an example somewhere. As well, it may look like a child is exclusively one race from a mixed race couple, but it may be just certain dominant features that stand out that make it look that way. |
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| the_fornicator |
quote:
Originally posted by seevik
k if its a million to one odds? wouldnt thre be lots more kids like this? since there is 6 billion ppl
you forgot some factors...
what portion of the population is male/female/transgendered/unidentifiable?
geography... some are confined within a certain geographic area and simply don't have access to the outside world.
then you gotta know the portion in terms of race of each male/female.
and then there's the probability of having twins... from the male/female couple... that's also of two different races... one of which is recessive and the other of which is dominant.
etc.
just cause there's 6 billion people doesn't mean there should be 6,000,000,000 x 0.000001
betcha if you look at the number of twins born, then your scope seems a little more realistic. |
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| wubba_65 |
What were you searching for when you stumbled across this :blue:
Very cool though. |
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