Correct. The Y-DNA is passed on solely through the male line. mtDNA is passed on through the maternal line although sons will have the mtDNA of their mothers, but once the sons have children then they will have the mtDNA of their mother, not their father. What happened in the original case was 2 families with a common wife and the children being from only one husband - not uncommon. By the way my comment about a garden party was followed by a ;-) indicating that it was a joke and not to be taken seriously... Cliff. Johnston "May the best you've ever seen, Be the worst you'll ever see;" from A Scots Toast by Allan Ramsay ----- Original Message ----- From: "Evelyn" <ebayna@ucsd.edu> To: <countycork@rootsweb.com> Sent: Tuesday, August 25, 2009 4:35 PM Subject: Re: [CO CORK] DNA question > Now this is really getting confusing. HER sons do not carry any of HER > father, grandfather, greatgrandfather's Y DNA unless she married her > cousin. > The Y DNA is passed in the Y chromosome which comes from the male and > determines that the child is a boy. Therefore if she wanted to test her > father she would have to have a brother or Uncle on her father's side or > perhaps a male cousin on her father's side. This is the same problem I > have > with my father in that to test any of his Fahey relatives I need a male of > direct descent. His father was an only son and his father's father had > one > brother but no children. Any further back in Ireland is difficult to > trace. > So hopefully someone will get tested that matches him with the same last > name but as has been posted that might take a while or never happen. I'm > hoping. > The Bullock name could be it. My father's mother was 6 months pregnant > when > she married John Fahey so most likely he wasn't adopted but perhaps his > father wasn't his biological father. I've asked the cousins on his > mother's > side but they don't have any idea. The cousins on his father's side > didn't > even know he existed since his father died when he was 2 and he never knew > that side of his family. > Evelyn > > -----Original Message----- > From: countycork-bounces@rootsweb.com > [mailto:countycork-bounces@rootsweb.com]On Behalf Of Cliff. Johnston > Sent: Tuesday, August 25, 2009 11:27 AM > To: countycork@rootsweb.com > Subject: Re: [CO CORK] DNA question > > > As long as the male line is unbroken then her sons would have the same > Y-DNA > as that of her great grandfather; however, if a male from another family > is > the father of her 2 sons then they would have different Y-DNA. > > Cliff. Johnston > "May the best you've ever seen, > Be the worst you'll ever see;" > from A Scots Toast by Allan Ramsay > ----- Original Message ----- > From: "Sharon Haggerty" <smhaggerty@shaw.ca> > To: <countycork@rootsweb.com> > Sent: Tuesday, August 25, 2009 1:16 PM > Subject: Re: [CO CORK] DNA question > > >> Previous messages led me to believe Pat was the mother of the two sons, >> not >> the father? If so, her sons do not carry her father's y-dna. They carry >> the >> y-dna of her father-in-law. >> >>> ----- Original Message ----- >>> From: "Cliff. Johnston" <moments-in-time@comcast.net> >>> To: <countycork@rootsweb.com>; <CountyCork-L@rootsweb.com> >>> Sent: Tuesday, August 25, 2009 11:17 AM >>> Subject: Re: [CO CORK] DNA question >>> >>> >>>> Pat, >>>> >>>> Both sons carry your father's Y-DNA; >> >> Check out the Ireland GenWeb County Cork Website at: >> http://www.rootsweb.com/~irlcor/ >> It is a good place to find information related to your family research. >> ------------------------------- >> To unsubscribe from the list, please send an email to >> COUNTYCORK-request@rootsweb.com with the word 'unsubscribe' without the >> quotes in the subject and the body of the message > > Check out the Ireland GenWeb County Cork Website at: > http://www.rootsweb.com/~irlcor/ > It is a good place to find information related to your family research. > ------------------------------- > To unsubscribe from the list, please send an email to > COUNTYCORK-request@rootsweb.com with the word 'unsubscribe' without the > quotes in the subject and the body of the message > > Check out the Ireland GenWeb County Cork Website at: > http://www.rootsweb.com/~irlcor/ > It is a good place to find information related to your family research. > ------------------------------- > To unsubscribe from the list, please send an email to > COUNTYCORK-request@rootsweb.com with the word 'unsubscribe' without the > quotes in the subject and the body of the message