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Vietnam Identifies a Rare Case of Twins With Different Fathers

by Dr. Trupti Shirole on March 10, 2016 at 10:14 AM
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 Vietnam Identifies a Rare Case of Twins With Different Fathers

Bi-paternal twins are twins with different fathers but the same mother. This can happen if two eggs from the same mother are fertilized by sperm from two different men during separate acts of sexual intercourse within the same ovulation period. Vietnam has identified an extremely rare case of bi-paternal twins, reported a professor at a DNA testing lab in Hanoi.

A set of twins born to a Vietnamese couple, whose names have not been released, were recently taken for testing because of stark differences in the children's appearances, according to local reports.

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"Our Center for Genetic Analysis and Technology lab has tested and found a pair of bi-paternal twins," said Le Dinh Luong, president of the Genetic Association of Vietnam. "This is rare not only for Vietnam, but for the world," he said, explaining that the two children had different fathers but the same mother.

According to the state-run Tuoi Tre newspaper, the Vietnamese husband requested genetic testing at the Hanoi lab to determine whether he was the biological father of both his wife's twins.
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The man's relatives pressured him to take the test because one of the babies looked strikingly different from him and the other child, the report said. The results indicated that the man was related to only one of the babies. Ruling out a hospital mix-up, his wife was found to be the biological mother of both children, Tuoi Tre reported.

According to Dan Tri online news site, the twins were the same sex, born on the same day just a few hours apart, but look completely different. The report said the twins are now two years old and one of them has thick, wavy hair while the other has thin, straight hair.

Another rare case of bi-paternal twins was reported in the United States in 2015, when a court ruled that a man was only required to pay child support for one girl in a set of twins after DNA tests proved he was not the father of both.

Source: AFP
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