Re: [Cz-L] Our origin.

Let me add another 3 cents to the discussion about our origin as a reply to Cornel and Mimi.

Cornel, the offered (and quite expensive) DNA analysis is usually one of two methods or a combination of both: The analysis of the Y-chromosomal DNA which is passed from father to son unchanged (except. mutations) and mDNA which is passed from mother to the children, also usually unchanged. This way one can maybe find his patrilineage and matrilineage. Your example with the Cohen marker is true and interesting.

However, you have many other lineages which are not tested, not analysed by these offered tests, to begin with the matrilineage of your father and the patrilineage of your mother. In every generation back you have more lineages, missed by these tests, which will never show all of your ancestors, probably only a small part of them.

On the other hand lineages will probably cross several times many generations back, just because there never have been so many people in the past to have for instance 100 generations of not related ancestors. I read somewhere that a big chunk of Ashkenazim descend (matrilieage) from only 4 female ancestors which originated in the Middle East. This way many of us may be somehow related :-)

In addition to this I tried to explain in my last mail, that some true ancestors (in rare occasions) may not pass any DNA information to us (not true for Y-chromosome and mDNA). These ancestors will never be discovered by any test, beside the fact, that the usual tests wouldn't even try to provide this info.

Mimi, to have Rashi as an ancestor can make one very proud, even without the speculation of King David descent.
It is probably not true that all Jews at any time were or are of King David descent, just because the number of Jews is or was less than the number of his possible descendants. During the last 3000 years the lineages of different Jews from his times may have crossed more than one time, so we never know individually, and for Jews as a collective, I would say, this is something for an expert on statistics.

Alex

----- Ursprüngliche Message -----
> Von: Miriam Taylor <mirtaylo_at_indiana.edu>
> An: Cornel Fleming <cornel.fleming_at_virgin.net>; HARDY BREIER <HARDY3_at_BEZEQINT.NET>; CZERNOWITZ-L <Czernowitz-L_at_cornell.edu>
> CC:
> Gesendet: 5:15 Sonntag, 22.April 2012
> Betreff: Re: [Cz-L] Our origin.
>
>
> Cornel,
>
> Ah, but you forgot about exponential growth!
> King David lived in 1040=AD970 BC or about 3000 years ago.
> Assume a generation to be 30 years.
> Then since his lifetime there have been about 100 generations.
> Assume king David had 2 children, actually he had many more.
> If each of his children had two children, and if these, also had
> two children and so on, then the number of descendants of king David
> after 25 generations or 750 years, would have been 33,554,432.
> Since there were not over 33 million Jews in the year 220 BC, it follows
> that all Jews at that time were already descendants of king David.
> All the more so in our time.
>
> Mimi
>
>
>

-snip-
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Received on 2012-04-22 07:57:53