Ball Grid Array. Many thousands of them on a microchip, each specific to a particular feature which is, or may be, found in the testee's chromosomes. Principally pioneered by 23andMe, the scheme gives a broadside snapshot which allows analysis to identify chosen specifics, which can include defects important to health and racial ancestry mix, plus general structure, the last identifying which pieces came from which parent, grandparent etc. The proportion runs about half from each parent, a quarter from each grandparent etc., so it's about 3% from each ancestor back 5 generations, typically the practical limit. But that's a lot of ancestors, with matches possible also to their siblings and descendants, so if there's a large, random, database to search in, there's a good chance of identifying possible relatives. 23andMe are driving to bring their searchable database up to the one million mark by the end of this year...
kb ----- Original Message ----- From: "Ron Walter" <ronwal...@sonic.net> To: LegacyUserGroup@LegacyUsers.com Sent: Monday, June 17, 2013 5:41:54 PM Subject: Re: [LegacyUG] Legacy 8 Lots of worthwhile info in your email but too many acronyms for me - for example, I can't decide if BGA is the acronym for Barista Guild of America or Battle Ground Academy? Best Ron On Jun 17, 2013, at 12:48 PM, britton...@comcast.net wrote: > Legacy User Group guidelines: http://www.LegacyFamilyTree.com/Etiquette.asp Archived messages after Nov. 21 2009: http://www.mail-archive.com/legacyusergroup@legacyusers.com/ Archived messages from old mail server - before Nov. 21 2009: http://www.mail-archive.com/legacyusergroup@legacyfamilytree.com/ Online technical support: http://www.LegacyFamilyTree.com/Help.asp Follow Legacy on Facebook (http://www.facebook.com/LegacyFamilyTree) and on our blog (http://news.LegacyFamilyTree.com). To unsubscribe: http://www.LegacyFamilyTree.com/LegacyLists.asp
