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From: "Diana Gale Matthiesen" <>
Subject: Re: [DNA] The death of paragroups
Date: Thu, 30 Dec 2010 12:39:21 -0500
References: <8FB365E1-2876-4664-AA70-3CCD4CEBB9CB@vizachero.com><000501cba78a$0850ce70$c2482dae@Ken1> <003b01cba79b$5dbd2f00$19378d00$@dgmweb.net><003101cba7ad$8afe1800$c2482dae@Ken1> <005701cba7ba$60e42070$22ac6150$@dgmweb.net><006301cba7bb$82fddfb0$c2482dae@Ken1> <005901cba7ca$2913d8b0$7b3b8a10$@dgmweb.net><005301cba7df$72f33c40$c2482dae@Ken1>
In-Reply-To: <005301cba7df$72f33c40$c2482dae@Ken1>


SNPs got brought into my message because we are talking about the Y-DNA
Haplotree, which is based on SNPs.

The way you, personally, visualize the tree is not the only way it can be
legitimately viewed.

Diana

> -----Original Message-----
> From: [mailto:genealogy-dna-
> ] On Behalf Of Ken Nordtvedt
> Sent: Thursday, December 30, 2010 12:07 AM
> To:
> Subject: Re: [DNA] The death of paragroups
>
>
> ----- Original Message -----
> From: "Diana Gale Matthiesen" <>
>
> > How probable is it that
> > any of the "useful" SNPs have appeared in multiple sons of the same
> > father? Is it not *far* more probable that the appearance of most, if
> > not all, known useful SNPs are separated by many generations?
>
> >>
> >> [[A trifucating node in a ytree would be a father having three sons
> >> who each
> > have
> >> surviving lines to the present. You can probably think of an example
> >> in your
> > extended
> >> family of relatives or in your genealogical trees. ]]
>
>
> Nodes, whether bifurcating, trifurcating, or what, have nothing to do with
whether snps,
> useful or otherwise, appeared in the multiple sons of the same father. It is
their
> descending lines which are the important things (and make the node a node) ---
do they
> reach the present or not. So I don't know how snps got brought into your
reply? As I
> have said repeatedly over the months and years, the tree exists with or
without the snps;
> the snps tag the tree and help us learn about features of the tree.
>
> But now that they have been brought up --- yes, the snps on the branch line
segments
> between nodes are equally likely to happen anywhere along those branch line
segments.
>
>
>
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