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24629 |
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Date: June 16, 2017 at 02:51:46
From: snodrop, [DNS_Address]
Subject: Vanishing twin syndrome |
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Not sure if this has been discussed before or even if this is the right board for it as I can find a reason for it to be on science, wowwows or dreams board as well.
I've been reading up on "chimeras" or genetic "chimerism". I saw an article about how a couple had a child and were having trouble conceiving for the second time and opted for in vitro. A child was conceived but upon routine blood testing after the child was born, it turned out the husband was not the father. Wanting to sue the in vitro clinic for a possible mix up of sperm and the likelihood the wife had been impregnated by a stranger, they approached a genetic testing company for answers...after the clinic confirmed they did not make a mistake.
Turns out, that the child did share some of his father's dna...but only 25%. Obviously not possible. Every person has 50% dna of each parent. In this particular case however...that meant this child had a 1/4 of his father's dna and that of his uncle...that had never been born. It's called "vanishing twin syndrome" where a twin simply vanishes and is absorbed by the remaining zygot somewhere in the first trimester of pregnancy. It's not all that uncommon either as a study was done back in the 90's and according to them, at LEAST one out of every 8 single births are affected by "vanishing twin syndrome" or chimerism.
So roughly 600-700 million people (possibly higher) have absorbed their twin.
Perhaps this is the key for example for split personalities, transgenderism etc.
Interesting to ponder for sure!
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[24631] [24630] |
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24631 |
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Date: June 17, 2017 at 15:43:11
From: Sue\Seattle, [DNS_Address]
Subject: Re: Vanishing twin syndrome |
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Also interesting how a mixed race couple can have one twin that looks white while the other looks black
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24630 |
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Date: June 16, 2017 at 20:53:28
From: Jody/Concord,CA, [DNS_Address]
Subject: Re: Vanishing twin syndrome |
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Thank you Snodrop for this interesting concept & post!
I'd heard of this from a news investigation where a woman had given birth to 2-3 children yet lab results said "She was NOT the mother"! She was a chimera but it took so much investigating and a lot of frustration to understand what was going on.
Another way of understanding this vanishing twin thing is people who have 'extra' organs. Maybe the mother never knew she was carrying twins originally and then gave birth to a single baby who was normal looking but then had two sets of organs i.e. uterus's, kidneys, ovaries etc. That would be the vanished twins' organs which tells that person they were originally a twin.
It's weird and fascinating at the same time Blessings, Jody
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