Consumer DNA testing–no oversight, no peer review, only estimates (quick post)

In a recent test, identical twins received different ancestry profiles from each of five well-known consumer DNA testing companies; the results should have been identical.

The difference comes through the calculations done by the companies–the reference panels and algorithms used; data that is kept secret by the companies. Remember that the results of this kind of testing are no more than estimates; they are not precise scientific fact —

(Charlsie Agro and Luke Denne, CBC News, January 18, 2019).

Identical twins and consumer DNA testing

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