On Tuesday, October 18 at 7pm, Dr. Sandy Murray will continue the discussion about the basic biology and terminology used to analyze DNA, the 3 major DNA-testing companies & “ethnicity/admixture” results, match lists and the analytical tools available at each company, chromosome browsers and matrix tools, and how to transfer results to the free site, GEDmatch, to compare results from different companies. Register online or by calling 978-623-8401, x31. Sponsored by the Friends of MHL.