GENEALOGY-DNA-L Archives

From: "Alfred A. Aburto Jr." <>
Subject: Re: [DNA] Population genetics: DNAs from the EuropeanNeolithic FULL TEXT
Date: Tue, 17 Oct 2006 15:50:19 -0700
References: <530.b663aa5.326630d8@aol.com>
In-Reply-To: <530.b663aa5.326630d8@aol.com>

Thank you Ann!
Al

> wrote:

>It's defined at Wikepedia as "an error in the way scientific research is
>conducted such that a false association is produced by unintentional non-random
>sampling of two study populations."
>
>http://en.wikipedia.org/wiki/Ascertainment_bias
>
>In ancient DNA studies, one example of ascertainment bias could occur if the
>remains available for study are available only because of different burial
>practices in a certain segment of the population.
>
>Jobling's article "The Human Y Chromosome: An Evolutionary Marker Comes of
>Age" has a sidebar about ascertainment bias and Y chromosome markers. I liken it
>to the parable of the drunk looking for his car keys under the streetlight
>because it was dark where he dropped them. We can only study markers we already
>know about from previous research in limited populations.
>
>http://www.le.ac.uk/genetics/maj4/JoblingTS.03.NRG.Review.pdf
>
>Ann Turner
>
>

This thread:

• [DNA] Population genetics: DNAs from the European Neolithic FULLTEXT by "ljcrain" <>
  • Re: [DNA] Population genetics: DNAs from the European NeolithicFULL TEXT by "Alfred A. Aburto Jr." <>
  • [DNA] mtDNA Haplogroup H Project - updates posted by Laura Hayden <>
  • Re: [DNA] Population genetics: DNAs from the European NeolithicFULL TEXT by

    • Re: [DNA] Population genetics: DNAs from the EuropeanNeolithic FULL TEXT by "Alfred A. Aburto Jr." <>