Date: 9/06/2013 00:13:34
From: purple
ID: 325690
Subject: conjoined twins

I just watched a show about the successful separation of twins from Ireland.
They had their own hearts, a kidney each, forget what they said about the liver.
Apparently the conjoining happens in the first 7 days.
What I don’t understand is the way the embryo behaves.
It seems the genes got it together to give each boy a heart, but overall the embryo has only two legs.
What is happening here?
thanks

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Date: 9/06/2013 00:16:24
From: dv
ID: 325696
Subject: re: conjoined twins

“What is happening here?”

What is happening here is that an embryo is splitting, but the mitosis doesn’t complete.

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Date: 9/06/2013 00:18:51
From: Skunkworks
ID: 325698
Subject: re: conjoined twins

purple said:


I just watched a show about the successful separation of twins from Ireland.
They had their own hearts, a kidney each, forget what they said about the liver.
Apparently the conjoining happens in the first 7 days.
What I don’t understand is the way the embryo behaves.
It seems the genes got it together to give each boy a heart, but overall the embryo has only two legs.
What is happening here?
thanks

Stitching errors? I recently learned that doctors check new borns who have hare lips for hear problems cos it is a centreline joining problem that goes down the entire body.

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Date: 9/06/2013 00:37:12
From: purple
ID: 325714
Subject: re: conjoined twins

They said it was two embryos that fuse.

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Date: 9/06/2013 00:39:51
From: purple
ID: 325718
Subject: re: conjoined twins

hold that thought.
I thought they said the boys were non-identical.
will watch it again tomorrow.
sorry for my confusion

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Date: 9/06/2013 00:45:30
From: dv
ID: 325726
Subject: re: conjoined twins

Purple, it seems my ideas on this are out of date, so I’ll pipe down and hopefully someone with more relevant skills will be able to help.

But I’ll admit I’ve never heard of non-identical conjoined twins.

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Date: 9/06/2013 18:50:47
From: purple
ID: 326288
Subject: re: conjoined twins

I just watched it again
during the third week, two separate non-identical embryos fuse.

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Date: 9/06/2013 18:51:29
From: Divine Angel
ID: 326289
Subject: re: conjoined twins

That’s highly unusual.

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Date: 11/06/2013 18:07:52
From: purple
ID: 327680
Subject: re: conjoined twins

I’m wondering if the announcer was confused (or just wrong)
They sure look identical to me
http://img714.imageshack.us/img714/5528/0acomtwins.jpg
http://www.sligotoday.ie/images/1344836779.jpg

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Date: 11/06/2013 18:14:49
From: OCDC
ID: 327686
Subject: re: conjoined twins

I’d go with wrong or confused announcer.

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Date: 11/06/2013 18:30:25
From: PM 2Ring
ID: 327696
Subject: re: conjoined twins

OCDC said:


I’d go with wrong or confused announcer.

Ditto.

I suspect that it’d be extremely unlikely for fraternal twins to be able to fuse to make conjoined twins. OTOH, it’s not unheard of for one of a pair of fraternals to become a chimera by absorbing tissue from their sib that didn’t make it.

https://en.wikipedia.org/wiki/Lydia_Fairchild

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