Which is the right test?

[gnome788]

The right test.

Mr McCoy, I find your response interesting because I was told by a Biology Professor that this is the route to take given the circumstance that the direct males refuse to do testing.

[gnome788]

I have found someone that has the same unusual surname as my great-grandfather before it was changed. None of the surviving males will do a Y DNA test to see if we are related, even though I have offered to pay. I have been told if I have an autosomal test of daughter of a daughter of a daughter of...