X matches to cousins #dna


Sarah L Meyer
 

Sandy, if your male cousin is related to you on *his* mother's side, you
might match. If however he is related to you on his father's side, it would
be very unlikely that you would have an X match. Every woman gets an X from
each of her parents, but a man gets his X >from his mother, he gets a Y from
his father. There are several Facebook groups with nice charts on the
inheritance of the X. One is DNA Your Jewish Journey.

Sarah Christiansen
Georgetown TX

---
From: Sandy Crystall <rosapalustris@gmail.com>
Date: Tue, 22 May 2018 23:13:09 -0400

I am confused about X-matches in autosomal DNA (tested with FTDNA/Family
Finder). I have three first cousins (siblings) >from the same family. The
two female cousins are X-matches to me, but the one male cousin (third
sibling) is not an X-match. Shouldn't they all be X-matches?


Shmuel Yoseph <shruyo@...>
 

Shalom Sarah and Sandy,
Concerning Sarah's reply:
"Sandy, if your male cousin is related to you on *his* mother's side, you
might match. If however he is related to you on his father's side, it would
be very unlikely that you would have an X match. ....."

I think Sarah's statements needs a slight clarification:
I would have thought:
" ..... if your male cousin is related to you on *his* mother's side,
you **will** match (as an X-match).
If however he is related to you on his father's side,
you **won't** have an X match. ....."

This clarification, if true, has ramifications into how one may
further conduct their research.

Secondly, as an extension of this question, my question would be, if
he indeed matches on his mother's side, then does he match on his
mother's mother's side, and thus on his mother's mother's side? OR
he matches on his mother's side, then form there, there is no telling
from the Family Finder whether he matches on his mother's mother's
side or mother's fatehr's side.
And similarly for the female, if she is marked "X" with someone - dors
this mean it is on her mother's mother's side, and thus mother's
mother's mother's side, or it could be on her mother's father's side?

If the answer to what exactly the "X-Match" means is the former, ie if
it is on the male's mother's mother's mother's ... side and the
female's mother's mother's mother's side - then the research comes lot
more easier and one will thus know that they match on their respective
strictly maternal lines, without having to do the mtDNA.

Shmuel Reuven Yoseph,
Ashqelon,
Y HG: "J2-M67"
mtDNA HG: "T2"