How To Do A Genetic Genealogy Investigation Start To Finish скачать в хорошем качестве

How To Do A Genetic Genealogy Investigation Start To Finish

This episode genetic genealogist Christine Burke explains how forensic genetic genealogy combines DNA testing with traditional genealogy to identify unknown persons or suspects, usually over two to three months but sometimes as fast as 48 hours or as long as 18 months depending on lab turnaround, access, and coordination. It outlines a phased workflow: selecting the right lab and test type with attention to chain of custody, turnaround times, sample condition, and database compatibility (GEDMatch and FamilyTreeDNA), then uploading results and triaging DNA matches by centimorgan values. We discuss building match trees, identifying common ancestors through repeating surnames and geographic patterns, using a “genetic positioning system” to place the unknown in the family tree, and confirming candidates with records and corroborating DNA. We conclude with confirmation, reporting, and presenting findings to stakeholders. 00:00 What FGG Does 00:30 Why Timelines Vary 01:34 Lab Choice And Testing 04:22 Uploading And Getting Matches 05:37 Triage Matches With cM 10:08 Who Are The Matches 13:03 Building Trees And Overlaps 14:49 Genetic Positioning System 16:53 Records And Hypothesis Testing 19:01 Confirmation And Reporting 20:00 Wrap Up And Encouragement