GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2006-06 > 1151692537
From: "O'Donnell - FTDNA Surname Proj" <>
Subject: multistep deletions on markers
Date: Fri, 30 Jun 2006 11:35:37 -0700 (PDT)
Why do multistep deletions on markers occur? Are there any theories/ideas on that? Are they caused by environmental factors, such as solar flares, cosmic rays, famine, etc?
I'm still puzzling over Y-DNA test results that show a multistep deletion on DYS 391, which is usually 10 or 11. I have a value of 7 on that marker. Thanks,
O'Donnell Surname Project at Family Tree DNA: