Fraternal Twins
Then there was Katie’s discovery. Katie, Hugh’s fraternal twin, had a significantly greater British and Irish ancestry than any of her siblings. While this may give the impression that the exams were erroneous, DNA specialist Dr. Ruth Ballard told KPIX 5 that this was quite normal, especially in the case of fraternal twins.
Fraternal Twins
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The changes were expected, and I would have been quite astonished if this had come back with no differences at all. While identical twins are born with DNA that is nearly identical to their parents, fraternal twins have greater genetic differences because one of them may inherit more DNA from one parent than the other, according to her research.
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