Paying close attention to the finer details, Jones worked with San Francisco news outlet KPIX 5 to make sure that the experiment was as blind as possible. Indeed, together they sent in the children’s DNA samples with different names and ethnicities marked. And they even went so far as to mail them from different cities in order to hide the fact that the samples were from relatives.
But when the Jones family received their results, they were once again surprised by the varying information that they received. That wasn’t due to the identical twins’ tests, however, which returned almost exactly the same results at approximately 71 percent northwestern European and almost 7 percent British and Irish.