(December 18, 2019 at 1:31 am)Gae Bolga Wrote: It wouldn't matter that we had access to the parents dna, or to the first human beings dna..unless shared dna strongly suggested a shared lineage. If that weren't true, then no amount of access to the dna of either party would be relevant to any paternity test. It is precisely because we have such access that we figured out that law of genetics - called "heredity".
Access to a parent's DNA matters if you're going to compare phylogenies to paternity tests; would you like to discard your analogy then?