Category archives for Labs and Testing Technology

Resources for Insights on DNA Ancestral Percentages

Many DNA testing laboratories are advertising ethnicity or ancestral population percentages for participants – but how are those figures calculated? Why are there such differences in the results from one company to another? This presentation provides insights on how these percentages are derived. Ancestral Percentages here meaning Biogeographical Ancestry (BGA) defined as an estimation of […]

Big Y-500 – Initial Review

Line Chart of TMRCA

On April 20, 2018, Family Tree DNA (formally Gene By Gene Ltd, aka FTDNA) announced the initial release of allele count values for 389 new STR markers (labeled as Panel 6) scored from Next-Gen sequencing data recorded on Big Y DNA existing orders. Going forward FTDNA states they will only sell Next-Gen sequencing of the […]

Resources for Don’t Discard the Y-STRs

Chart Diagram of Y-DNA Testing Price Value Comparison

Here is a list of references, resources, and additional information relating to the presentation for Don’t Discard the Y-STRs: Web Resources View the presentation slides online (PDF) (Updated 9 June 2017) Video Recording of live presentation available until 10 July 2017. Note that technical difficulties inhibited slide presentation.  Genetic Homeland Tools Join a DNA Mapping […]