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by KMag 883 days ago
> There was also the case where a DNA test of a woman's children showed that they did not share any of her DNA.

The DNA information did show relation, but suggested that she was the aunt rather than the mother of the children. In some sense, due to mosaicism, the mother was her own sister. One "sister" showed up in the cheek swabs, and the other "sister" produced the eggs.