YehudahTzvi:
You are aware that the daughter of a giyores is perfectly kosher for a kohen to marry????
Actually, Kohanim are machmir and do not marry the daughters of converts.
http://www.hebrewbooks.org/pdfpager.aspx?req=40524&st=&pgnum=44
http://hebrewbooks.org/shas.aspx?mesechta=20&daf=78b&format=pdf
(Halacha links… pretty please let it through, MODS?)
(Regardless, the haplotype is only through the father. Thus, even a goy (born of a Jewish father) could have pure Kohain DNA but not even be Jewish.)
“That’s why the search for a “kohen” genetic pattern focuses on part of the the male chromosone unaffected by the female genetic materials.”
Again, the haplotype is ONLY passed through the father. Mitochondrial DNA can be traced through the mother.