Sunday, November 27, 2022

DNA showed a mother was also her daughter’s uncle — how scientists solved this medical mystery

 

https://www.grid.news/story/science/2022/11/25/dna-showed-a-mother-was-also-her-daughters-uncle-how-scientists-solved-this-medical-mystery

 

Dan Vergano
Science Reporter
November 25, 2022

 

How can a paternity test suggest a mother is also her daughter’s father?

The answer to that medical mystery, sparked by a confusing paternity test result, is “When the genes of a vanished twin brother live on in the mother’s DNA.” The finding, which genetics experts reported earlier this month, suggests that such human “chimeras” — people with DNA from more than one embryo — could be more common than we thought.

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