Family Finder question #dna


Elaine Bush <erbush@...>
 

I have FF results for myself and for my maternal first cousin. Is it
safe to say that if there is a match on my FF list who does not turn
up anywhere on his FF list, that that match comes >from my paternal
side? It would seem so, but one of my results odd: My maternal
male cousin has a yDNA match 37 markers, 2 steps. This Y match match
turns up on my FF results as 4th to remote, however does not turn up
at all on my cousin's FF results.

The yDNA is different >from my brother's, and so I guess this elusive
FF match could be >from my paternal grandmother's side?

Just trying to understand it all.

Elaine Bush
Pleasant Hill, CA
http://elainebush.tribalpages.com


Arnold Chamove <ArnoldChamove@...>
 

But, even two brothers do not have identical DNA for the FamilyFinder
to utilize, as each gets a random half the DNA of their father and a
random half >from their mother. That is why I did my sister's FF DNA too.
And, although the results (matches) are similar, they are not identical.
Presumably, in an extreme case, the DNA my brother and I (male) got >from
my father could have no overlap at all. And ditto for DNA >from our mother.
In such a case you can see how FF results would differ substantially.
Arnold Chamove
Palmerston North, New Zealand.
CHAIMOVICH (haplogroup T1a1), ADLER, LEVY¸ (Balta,Odessa,Nykolaev,
Raygorod); SCHEREK (J1c3), GOLDSTEIN, ASHER (J2a4h2a), FRIEDENTHAL
(J1c3), KOTTWITZ (E1b1b1a1c), ELIAS (U7a5), NATHAN, LICHTENSTEIN,
KATZ, SCHMUL, JAKIER, PRASZKER, BIER (Kepno,Poznan)
---

Elaine Bush asked, "I have FF results for myself and for my maternal
first cousin. Is it safe to say that if there is a match on my FF
list who does not turn up anywhere on his FF list, that that match
comes >from my paternal side? It would seem so, but one of my
results odd: My maternal male cousin has a yDNA match 37 markers, 2
steps. This Y match match turns up on my FF results as 4th to remote,
however does not turn up at all on my cousin's FF results. The yDNA is
different >from my brother's, and so I guess this elusive FF match could
be >from my paternal grandmother's side?

MODERATOR NOTE: Cyrillic versions of the names in the searching list
have been removed. JewishGen lists are unable to transmit non-Latin
characters.


elanc@...
 

Dear Elaine,

A two-step match in a 37 marker YDNA test is not very close. The
common ancestor probably lived ten or more generations ago. So
don't assume that the Y and autosomal (FF) matches came >from the
same ancestor. Intermarriage of distant cousins was quite common,
particularly in the little shtetls of eastern Europe, where
everyone knew one another and the choice of spouses was limited.

For most of us with Ashkenazi ancestry the paper trail disappears
in the early 1800s, and most of the Y-DNA matches pre-date that
time. So the chance of correlating a DNA match with your documented
family tree is small.

Elan Caspi
Belmont, CA

---
From: Elaine Bush <erbush@...>
Date: Wed, 16 Oct 2013 14:20:43 -0700

I have FF results for myself and for my maternal first cousin. Is it
safe to say that if there is a match on my FF list who does not turn
up anywhere on his FF list, that that match comes >from my paternal
side? It would seem so, but one of my results odd: My maternal
male cousin has a yDNA match 37 markers, 2 steps. This Y match match
turns up on my FF results as 4th to remote, however does not turn up
at all on my cousin's FF results.

The yDNA is different >from my brother's, and so I guess this elusive
FF match could be >from my paternal grandmother's side?


Elaine Bush <erbush@...>
 

Thank you to all who responded to my Family Finder question. Very
helpful all around.

Elaine Bush
Pleasant Hill, CA


DonnDevine@...
 

Elaine, the FF stranger's Y-match to your maternal cousin would have to be
through your maternal grandfather if your brother does not share it. The
inheritance of autosomal segments >from the limited Ashkenazi genetic pool is
random, so FF can show a quite distant actual relationship as being much
closer to one of two people >from the same known lineage than to the other..

Donn Devine
Wilmington, Delaware, USA

----Original Message----

From: Elaine Bush (erbush@...)
Date: Wed, 16 Oct 2013 14:20:43 -0700

I have FF results for myself and for my maternal first cousin. Is it
safe to say that if there is a match on my FF list who does not turn
up anywhere on his FF list, that that match comes >from my paternal
side? It would seem so, but one of my results odd: My maternal
male cousin has a yDNA match 37 markers, 2 steps. This Y match match
turns up on my FF results as 4th to remote, however does not turn up
at all on my cousin's FF results.

The yDNA is different >from my brother's, and so I guess this elusive
FF match could be >from my paternal grandmother's side?