| 词条 | Lydia Fairchild |
| 释义 |
Lydia Fairchild is an American woman who exhibits chimerism, in having two distinct populations of DNA among the cells of her body. She was pregnant with her third child when she and the father of her children, Jamie Townsend, separated. When Fairchild applied for enforcement of child support in 2002, providing DNA evidence of Townsend's paternity was a routine requirement. While the results showed Townsend to be certainly their father, they seemed to rule out her being their mother. Fairchild stood accused of fraud by either claiming benefits for other people's children, or taking part in a surrogacy scam, and records of her prior births were put similarly in doubt. Prosecutors called for her two children to be taken away from her.{{dubious|date=September 2017|reason= "pros'r" is a role in a criminal trial. The logically related custody matter is a civil case with different *roles*, for attys, even if the prosecuter who brought the crim case happens to bring the civil action. (Likelihood of same atty having both roles is ruffly proportional to both pop'n and level of litigousness in that jurisdiction, but even so would not be acting in role of pros'ctor in the custody matter.)}} As time came for her to give birth to her third child, the judge ordered that an observer be present at the birth, ensure that blood samples were immediately taken from both the child and Fairchild, and be available to testify. Two weeks later, DNA tests seemed to indicate that she was also not the mother of that child. A breakthrough came when her defense attorney (https://abcnews.go.com/Primetime/story?id=2315693) learned of Karen Keegan, a chimeric woman in Boston, and suggested the similar possibility to Fairchild's lawyer, Alan Tindell, who then introduced an article in the New England Journal of Medicine about Keegan.[1][2] He realised that Fairchild's case might also be caused by chimerism. As in Keegan's case, DNA samples were taken from members of the extended family. The DNA of Fairchild's children matched that of Fairchild's mother to the extent expected of a grandmother. They also found that, although the DNA in Fairchild's skin and hair did not match her children's, the DNA from a cervical smear test did match. Fairchild was carrying two different sets of DNA, the defining characteristic of chimerism. See also
Notes1. ^{{cite journal|doi=10.1056/NEJMoa013452|last=Yu|first=Neng|date=16 May 2002|title=Disputed Maternity Leading to Identification of Tetragametic Chimerism|journal=New England Journal of Medicine|volume=346|issue=20|pages=1545–1552|pmid=12015394|display-authors=etal}} 2. ^{{cite web|last=Rowlands|first=Letitia|title=When your unborn twin is your children's mother|url=http://www.essentialbaby.com.au/life-style/nutrition-and-wellbeing/when-your-unborn-twin-is-your-childrens-mother-20140203-31woi.html|publisher=Essential Baby|accessdate=26 February 2014|deadurl=yes|archiveurl=https://web.archive.org/web/20140301211020/http://www.essentialbaby.com.au/life-style/nutrition-and-wellbeing/when-your-unborn-twin-is-your-childrens-mother-20140203-31woi.html|archivedate=1 March 2014|df=}} References
9 : 1976 births|Living people|Molecular biology|Applied genetics|Identity documents|Science and law|Biometrics|20th-century American women|21st-century American women |
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