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BEIJING, Oct. 28 (Xinhuanet) – U.S. researchers have found a man is not the father of his child. Rather, his unborn twin is the child's genetic father.
Barry Starr, a geneticist at California's Stanford University, said he and his colleagues studied the 34-year-old Washington man who failed a paternity test after he and his wife discovered their child shared a blood type with neither parent.
The upset couple thought the fertility clinic had used the wrong sperm. The clinic assured them there was no mixup, so the couple got a lawyer and approached Starr for help.
On Starr's advice, the father and son took DNA ancestry tests and learned that genetically the dad was his son's uncle. In other words, the dad was a "human chimera" who had soaked up the genes of a twin that perished in the womb, then passed them on to the son.
(Agencies)
