Advanced DNA

Photo Courtesy of U.S. Dept. of Energy Genomic Science

Advanced DNA Coffee Chat

These online Zoom meetings are open to BCGS members using DNA results
to enhance their genealogy research skills. 


This group is facilitated by Terry Hartley with the assistance of Jim & Kathleen Graham.
The Advanced DNA Skills group is member-driven and participative.

Advanced tools and approaches to DNA analyses are discussed to
share and build on the experience of our members.

The Introductory DNA and Parental Puzzles groups are also available to members.

The Advanced DNA group covers genetic genealogy topics in greater depth and detail. 

Members are welcome to join more than one group based on their needs and interests. 


“DNA doesn’t lie, but you have to figure out what it is telling you.”

  • CeCe Moore, The Genetic Detective


To promote an interactive environment, new members are accepted periodically based on group size.

An overview of work by the group is available in the BCGS April 2022 newsletter.

To see if this group is suitable for you and/or an invitation to the meeting, terrhart1@gmail.com.

Facilitators: Terry Hartley, Jim & Kathleen Graham

Contact: (For ZOOM invite) terrhart1@gmail.com


General Resources

Genetic Genealogy changes and grows as the science and tools evolve.
Blogs and YouTube videos will provide the most up to date information.
Well known writers and presenters in the field include:

Andy Lee / Family History Fanatics
Blaine Bettinger / The Genetic Genealogist
Diahan Southard / Your DNA Guide
Jonny Perl / DNA Painter
Leah Larkin / The DNA Geek
Michelle Leonard / Tracing Your Ancestors Using DNA
Roberta Estes / DNA Explained

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Announcements & News

Please refer to the calendar on Home Page for the date of the next scheduled coffee chat.

Websites & Blogs

  1. DNA Testing Strategies: Purposive Sampling
    Information to help you decide who to test.
    Roberta Estes at DNA Explained
    https://dna-explained.com/2021/04/18/a-triangulation-checklist-born-from-the-question-why-not-use-close-relatives-for-triangulation/

  2. DNA Painter
    Solve DNA puzzles including unknown parentage
    Tools include: What Are The Odds (WATO), the Shared Centimorgan Project relationship probabilities, chromosome mappy and painting.
    https://dnapainter.com/help#intro-wheretostart
    https:/dnapainter.com/help

  3. Endogamy and Pedigree Collapse
    Help for when the same person appears multiple times in your tree (pedigree collapse) and when you have DNA matches with people who have no shared immediate ancestors but many historical ancestors (engogamy).
    https://dna-explained.com/2021/07/23/whats-the-difference-between-pedigree-collapse-and-endogamy/

    https://www.youtube.com/watch?v=Ilgl5707iP4

    https://thednageek.com/contribute-to-the-endogamy-study/

  4. GEDmatch
    Upload your raw DNA data from other sites and search for matches including segment information.
    https://www.gedmatch.com/how-it-works

  5. Genetic Genealogy Blogs from the ISOGG
    https://isogg.org/wiki/Genetic_genealogy_blogs


BCGS Library Books

  1. Advanced Genetic Genealogy: Technigues and Case Studies
    Debbie Parker Wayne
    Call No. 576.5 WAY

  2. Your DNA Guide - the book
    SOUTHARD, Diahan
    Call No. 576.5 SOU

  3. Genetics 101 - a crash course in D.N.A. - from chromosomes and the double helix to cloning and D.N.A. tests, everything you need to know about genes. (Adams 101)

    SKWARECKI, Beth
    Call No. 576.5 SKW