GENEALOGY-DNA-L Archives

Archiver > GENEALOGY-DNA > 2011-01 > 1294522751


From: "Ken Nordtvedt" <>
Subject: Re: [DNA] How many realistic locations on the Y for SNPs?9
Date: Sat, 8 Jan 2011 14:39:16 -0700
References: <CCC150916E8E4411AFE12370BBEEE726@PC><001f01cbaeb0$4c9bff00$c2482dae@Ken1><63975AE0-4907-4B8A-93D3-90B240793C8A@verizon.net><002201cbaef0$22bda8b0$c2482dae@Ken1><B62B7165-4267-4A0D-B8C4-7934D3BA2908@verizon.net><008901cbaf4b$951943a0$c2482dae@Ken1><F6FCB88D-57FC-4F12-8253-A278A9A3DFCE@verizon.net><013201cbaf68$3c344830$c2482dae@Ken1><52AE5437-01C7-424A-89DD-C36D016506FE@verizon.net>


ok. And?
----- Original Message -----
From: "Jim Bartlett" <>
To: <>
Sent: Saturday, January 08, 2011 1:21 PM
Subject: Re: [DNA] How many realistic locations on the Y for SNPs?9


> Ken - the 3 billion men is half the earth's (rounded) population of 6b -
> they are aged 0-100+. And by a previous statement that living humans
> represent 1/3 of all those born; there are 6 billion dead men -
> representing a total of 9 billion male humans; and therefore 9 billion
> SNPs have occurred; virtually all since Y-Adam.
>
> Since the vast majority of these have occurred in the last 8,000 or so
> years, we'd only have 320 generations to work with; and we could use a
> little more modern rate of survival-to-fatherhood to whittle down the 9
> billion males to some number of fathers who passed on their SNPs...
>
> Jim - Sent from my iPhone - FaceTime!
>
> On Jan 8, 2011, at 2:14 PM, "Ken Nordtvedt" <>
> wrote:
>
>> If there are 3 billion males alive today, then the number of lines we
>> have
>> right now is pretty huge, but a good sized fraction of them will go
>> extinct
>> soon, although not at the extreme rate of extinction of the male lines
>> many
>> thousands of years ago ---
>
>
> -------------------------------
> To unsubscribe from the list, please send an email to
> with the word 'unsubscribe' without the
> quotes in the subject and the body of the message
>



This thread: