Are you speaking of FTDNA? They are including very small segments. I think you need to download all records from the chromosome and just focus on the largest X segments (at least 7 cM and preferably 10 cM). Ann Turner **************** Thank you--yes, I was speaking of. FTDNA. What about other chromosomes--does the threshold need to be that high, especially when a common ancestor has been identified? Lindsey

Lindsey I ignore any segments for any chromosomes that are smaller than 5cM. My early colonial and Irish ancestry cause many of the tiny segments to have multiple lines of possible connection and segments smaller than 10cM to have a much higher error rate. I think that Family finder would be more useful if they eliminated the requirement for a total of 20cM shared Dna and eliminated the use of the tiny segments. I have 14 project members in family finder but have pretty much stopped working with family finder, I find that I prefer 23andme but am curious it that will remain the case with the changes 23andme and Ftdna are proposing. RPaine -----Original Message----- From: Lindsey Britton via Sent: Thursday, November 26, 2015 10:34 AM To: GENEALOGY-DNA@rootsweb.com Subject: Re: [DNA] Question about Crossover on X Chromosome Are you speaking of FTDNA? They are including very small segments. I think you need to download all records from the chromosome and just focus on the largest X segments (at least 7 cM and preferably 10 cM). Ann Turner **************** Thank you--yes, I was speaking of. FTDNA. What about other chromosomes--does the threshold need to be that high, especially when a common ancestor has been identified? Lindsey ------------------------------- To unsubscribe from the list, please send an email to GENEALOGY-DNA-request@rootsweb.com with the word 'unsubscribe' without the quotes in the subject and the body of the message