My oldest daughter did a 23 and me DNA kit , on the results they showed enough of the Mitochondrial DNA test to show what Haplogroup that she was in which showed as K1a1b1a which on Wikipedia says usually means that Ashkenazi Jews in you genes , even thou it does not show in the autosomal DNA test,
Haplogroup K1a1b1a (mtDNA)
here is link to my oldest maternal ancestor
Mary (Moore) Shockley (abt. 1797 - bef. 1880)
There is a profile listing her mother as Katherine Wasson Moore (1775-1830) but not sure about the info on her, so it has not helped alot but it has enlighten me to know I still may have Jewish ancestors maybe, I know on my Dad's side that there might be Jewish way back, as the original ancestor on that side had a German/Yiddish name, Eisenmann , but from the records that found so far they were Lutherans when they came to this country in 1749 , the funny thing is , my dad's family is from the PA and Ohio area, my mother's ancestors came to Tennessee, from various places , she was born in Tn that may have both have Jewish ancestry, not really sure about the possibility as I do not know much about DNA