Go Back   Family Tree DNA Forums > Universal Lineage Testing (Autosomal DNA) > myOrigins Basics

Thread Tools Display Modes
Old 2nd April 2017, 02:35 AM
malchik malchik is offline
Join Date: Jan 2017
Posts: 159
Originally Posted by georgian1950 View Post
I've been at this for a long time. The truth be told is that I do not pay much attention to any of the admixture calculators because they all are missing something really huge.

Jack Wyatt
Reposting my answer from another thread...

Does it make sense to compare the results from different companies?

Each company...

(1) uses different sets of reference populations (different DNA samples),

(2) uses different sample sizes (different statistical universe),

(3) uses different labels for ethnic groups (different naming conventions),

(4) uses different algorithms to assign ethnic groups (different methods, different criteria),

(5) tests different amount of markers (different accuracy),

(6) focuses on different time frames (compares to older samples),

(7) compensates (or not) a calculator effect in a different way (http://bga101.blogspot.de/2012/05/be...or-effect.html)

And each (8) charges different prices (delivers different quality).

Some conclusions:

(1) Most comparisons will look suspicious, but that is not the fault of any single company.

(2) Many results will look strange (just take a look at my thread: MyOriginsStrangeResults) and that is a problem of each company.

(3) It is not fair, intellectually speaking, to accuse any company of racism (i.e. assigning small portions of X ethnicity to certain people), when you consider the points above (BUT YOU NEVER KNOW ABOUT HIDDEN AGENDAS... )

(4) It is not 100% logical to assume you have ancestry directly from the ethnical groups assigned to you (e.g. Modern Scandinavian). It may indicate only that you have a deep ancestry that is common to you and Modern Scandinavians.

(5) By assuming one company is right, you are assuming all the others are less right or wrong (almost like counting the hits, forgetting the misses). And that is not scientific approach. You need to PROVE why that company is right based on UNDISPUTABLE FACTS.

(6) With time, more and more people will test, so better assumptions can be made, many hypothesis can be confirmed or excluded.

Anything else is entertainment or wild speculation.
Reply With Quote
Old 7th December 2017, 01:01 AM
ltd-jean-pull ltd-jean-pull is offline
FTDNA Customer
Join Date: Jun 2016
Posts: 500
My sibling recently tested at Ancestry and has NO genetic communties. We're mongrels!
Reply With Quote
Old 7th December 2017, 07:24 PM
mollyblum mollyblum is offline
FTDNA Customer
Join Date: Mar 2012
Location: The Cosmos
Posts: 324
Blog Entries: 1
Originally Posted by ~Elizabeth~ View Post
After reading this thread I went to Ancestry to see what my Genetic Community is and all I get is this:

Sorry. Can’t help it. How can you not have a genetic community? Unless maybe you “bud” or parthenogenesis is taking place.
Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ancestry's "Improved" Ethnicity Estimate MoberlyDrake Family Finder Advanced Topics 25 3rd February 2014 01:42 PM
Ethnicity?? lkocanda DNA and Genealogy for Beginners 6 10th July 2013 04:01 PM
Sorting the subclades of Z196 (a major component of P312) razyn Paternal Lineage (Y-DNA STR) Advanced 5 25th March 2012 04:36 PM
Principal component analyses jpulla DNA and Genealogy for Beginners 1 25th October 2010 04:13 PM
DNAPrint results: Significant Asian component in some Indo-European populations cfkerchner DNA and Genealogy for Beginners 16 4th May 2003 02:22 AM

All times are GMT -5. The time now is 02:36 PM.

Family Tree DNA - World Headquarters

1445 North Loop West, Suite 820
Houston, Texas 77008, USA

Phone: (713) 868-1438 | Fax: (832) 201-7147
Copyright 2001-2010 Genealogy by Genetics, Ltd.
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.