All DNA tracing can do is give some indication (probabilistic not definitive) of the origin of a particular pattern of DNA.

We know a bonobo is not a human, and we know people today are human.

What we do not know is where the dividing line is. Logically there was a first human.

Since God exists outside time and space, Adam and Eve could have been created, lived, and died anywhere without regard to any DNA testing.

This is an excellent example of a case where a theological truth is in no way contingent upon science. At best we can opine that there is no evidence of a prior unfallen creation in the record on this earth.