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Surprised baby


Man Failed His Paternity Test Due To His Vanished Twin’s DNA


DNA researchers report a father failed a paternity test because the genes in his saliva differ from his sperm’s. One in eight people might possess such “chimeric” genes caused by a twin lost in the womb.

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To read more about human chimerism, when to suspect it, and what can be done about negative DNA paternity tests, click:

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