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hgc · 27th March 2007, 09:53 AM

From bbc, a story about twins who are identical on their mother's side and fraternal on their father's side. Thought to be unique in all the world. Very cool stuff.

Quote:

They are the result of two sperm cells fertilising a single egg, which then divided to form two embryos - and each sperm contributed genes to each child.

Ziggurat · 27th March 2007, 10:01 AM

Originally Posted by hgc

Thought to be unique in all the world.

Almost certainly isn't unique. Prior to the advent of DNA fingerprinting, you'd never be able to tell the difference between this and ordinary fraternal twins, and even now, most fraternal twins probably don't get DNA testing done, so I'm sure there are more cases out there (though it probably is rare). It is interesting, though.

andyandy · 27th March 2007, 10:05 AM

oi! Get your hands off my thread!

hgc · 27th March 2007, 10:13 AM

Originally Posted by andyandy

oi! Get your hands off my thread!

Hey, I looked half way down the page to see if there was already a thread. That's what I call a good faith effort. Can I help it if your thread was on the bottom half of the page?

Ziggurat · 27th March 2007, 10:29 AM

Dude, when an angry orangutan tells you to let go of something, let it go...

27th March 2007, 09:53 AM	#1
hgc Penultimate Amazing Join Date: Jun 2002 Posts: 13,143	Semi-identical Twins! From bbc, a story about twins who are identical on their mother's side and fraternal on their father's side. Thought to be unique in all the world. Very cool stuff. Quote: They are the result of two sperm cells fertilising a single egg, which then divided to form two embryos - and each sperm contributed genes to each child.
	__________________ Bowel-shaking earthquakes of doubt and remorse assail him and wail him with monster truck force. - Cake, The Distance Was there a second singer on the grassy Knowles? - Stephen Colbert

27th March 2007, 10:01 AM	#2
Ziggurat Penultimate Amazing Join Date: Jun 2003 Posts: 26,285	Originally Posted by hgc Thought to be unique in all the world. Almost certainly isn't unique. Prior to the advent of DNA fingerprinting, you'd never be able to tell the difference between this and ordinary fraternal twins, and even now, most fraternal twins probably don't get DNA testing done, so I'm sure there are more cases out there (though it probably is rare). It is interesting, though.
	__________________ "As long as it is admitted that the law may be diverted from its true purpose -- that it may violate property instead of protecting it -- then everyone will want to participate in making the law, either to protect himself against plunder or to use it for plunder. Political questions will always be prejudicial, dominant, and all-absorbing. There will be fighting at the door of the Legislative Palace, and the struggle within will be no less furious." - Bastiat, The Law

27th March 2007, 10:05 AM	#3
andyandy anthropomorphic ape Join Date: Apr 2006 Location: up a tree Posts: 8,213	oi! Get your hands off my thread!
	__________________ "Contentment is found in the music of Bach, the books of Tolstoy and the equations of Dirac, not at the wheel of a BMW or the aisles of Harvey Nicks."

27th March 2007, 10:13 AM	#4
hgc Penultimate Amazing Join Date: Jun 2002 Posts: 13,143	Originally Posted by andyandy oi! Get your hands off my thread! Hey, I looked half way down the page to see if there was already a thread. That's what I call a good faith effort. Can I help it if your thread was on the bottom half of the page?
	__________________ Bowel-shaking earthquakes of doubt and remorse assail him and wail him with monster truck force. - Cake, The Distance Was there a second singer on the grassy Knowles? - Stephen Colbert

27th March 2007, 10:29 AM	#5
Ziggurat Penultimate Amazing Join Date: Jun 2003 Posts: 26,285	Dude, when an angry orangutan tells you to let go of something, let it go...
	__________________ "As long as it is admitted that the law may be diverted from its true purpose -- that it may violate property instead of protecting it -- then everyone will want to participate in making the law, either to protect himself against plunder or to use it for plunder. Political questions will always be prejudicial, dominant, and all-absorbing. There will be fighting at the door of the Legislative Palace, and the struggle within will be no less furious." - Bastiat, The Law