I have found the current discussion very interesting. There is one question which I would like clarified. In an autosomal test, such as the Family Finder from FTDNA, would the results be the same for tests from a brother and sister? Or would separate tests of each provide additional information? Possibly enough additional information to make the cost worthwhile? Another question which just occurred to me. Are the tests from 23 and Me and FTDNA different? Disregarding the cost, would tests from both companies be worthwhile or provide additional information? Bill

Bill, Each person's egg/sperm developes differetly, so NO you will not be exact to any of your siblings but you will share a high percentage of exact DNA segment(s) on each chromosome Pair. My sister and I share 52.25 percent identical chromosome segments, and we have the same parents. Something that hasn't been discussed is that each chromosome 1-22 and the sex chromosome pairs are two chromosomes one comes from your dad one comes from your mom.. with out special work to identify you don't know where the match comes from your Mom's or Dad's part of the pair. nelda Nelda L. Percival, Administrator of Y-DNA surname projects Gilpin, Cupp, Bonstein and Gillock My Genealogy - http://freepages.folklore.rootsweb.ancestry.com/~bonsteinandgilpin/index.htm GeneticGenealogy - http://www.geneticsand.us Blog - http://aircastles-lets-talk.blogspot.com/ GilpinGenetics: http://www.gilpingenetics.us/ Web Mistress for LCRG - http://www.rootsweb.ancestry.com/~molcgdrg > From: SODERSTRUM@aol.com > Date: Thu, 17 May 2012 01:00:19 -0400 > To: roots@rootsweb.com > Subject: [ROOTS-L] Autosomal DNA > > I have found the current discussion very interesting. There is one > question which I would like clarified. In an autosomal test, such as the Family > Finder from FTDNA, would the results be the same for tests from a brother > and sister? Or would separate tests of each provide additional information? > Possibly enough additional information to make the cost worthwhile? > Another question which just occurred to me. Are the tests from 23 and Me and > FTDNA different? Disregarding the cost, would tests from both companies > be worthwhile or provide additional information? > > Bill > ===== > If you would prefer digest mode to mail mode, drop a note to roots-admin@rootsweb.com and ask for the digest... > > ------------------------------- > To unsubscribe from the list, please send an email to ROOTS-request@rootsweb.com with the word 'unsubscribe' without the quotes in the subject and the body of the message

Bill, I should have added that I have cousin matches my sister does not have and she has cousin matches I do not have; so yes in a way additional siblings tested can give you more ancestral information.. If you had a half sibling then where you do match you would know that came from the common ancestor. other then that you need other relatives to test to identify which parent the match comes from... n. Nelda L. Percival, Administrator of Y-DNA surname projects Gilpin, Cupp, Bonstein and Gillock My Genealogy - http://freepages.folklore.rootsweb.ancestry.com/~bonsteinandgilpin/index.htm GeneticGenealogy - http://www.geneticsand.us Blog - http://aircastles-lets-talk.blogspot.com/ GilpinGenetics: http://www.gilpingenetics.us/ Web Mistress for LCRG - http://www.rootsweb.ancestry.com/~molcgdrg > From: SODERSTRUM@aol.com > Date: Thu, 17 May 2012 01:00:19 -0400 > To: roots@rootsweb.com > Subject: [ROOTS-L] Autosomal DNA > > I have found the current discussion very interesting. There is one > question which I would like clarified. In an autosomal test, such as the Family > Finder from FTDNA, would the results be the same for tests from a brother > and sister? Or would separate tests of each provide additional information? > Possibly enough additional information to make the cost worthwhile? > Another question which just occurred to me. Are the tests from 23 and Me and > FTDNA different? Disregarding the cost, would tests from both companies > be worthwhile or provide additional information? > > Bill > ===== > If you would prefer digest mode to mail mode, drop a note to roots-admin@rootsweb.com and ask for the digest... > > ------------------------------- > To unsubscribe from the list, please send an email to ROOTS-request@rootsweb.com with the word 'unsubscribe' without the quotes in the subject and the body of the message