Can an Indian DNA Test Find or Prove Native American Ancestry?
Their admixture report attempts to separate Asian ancestry into Indigenous American and East Asian components. This could be more useful for an Indian DNA test. But the population data is from relatively small samples. So the accuracy can be severely limited by statistical noise.NOTE: Those who have been around DNA testing for awhile will recognize this as the old DNA Print test licensed to a different company. DNA TribesAnother possibility for an Indian DNA test is DNA Tribes. They use a set of 21 autosomal markers, including the CODIS markers used by police in forensic investigations. [more...]
Date: 2010-03-12 16:15:35
What dna test is right for testing paternal grandmothers ancestry?
I'd like to do dna testing to see, but I'm not sure which test would give me the correct results-admixture? Also, does it matter if it's a female or male descendant who does the test? Since they're expensive tests, I [more...]
Date: 2010-07-01 23:18:20
Do the DNA Results Support the Story?
The Essential Guide to Tracing Your Family and Trace Your Roots With DNA. Megan confirmed my initial thoughts and suggested that I have one of mom’s cousins and another descendant of the suspected line tested to confirm the results, etc. Hopefully testing one or two of mom’s surviving first cousins won’t be an issue but I will have to wait until the next big sale before I can do that. Testing another descendant of the suspected line is a problem since I currently know of no other descendants outside my great grandmother Fannie's branch of the tree. You are probably wondering how mom [more...]
Date: 2010-08-19 05:02:00
Dr. Rick Kittles (Part 2) Full Episode
Kittles talks about the use of DNA to trace a person’s heritage and how he responds to critics of his work. Dr. Kittles’ research focus is to formally evaluate genetic mechanisms involved in complex diseases. His work entails understanding how genetic variation is structured across human populations and how that variation contributes to inter-individual variation in disease susceptibility and other phenotypes such as drug response and skin color. Currently his work explores sequence variation within candidate genes in well-characterized populations for prostate and breast cancer, [more...]
Date: 2010-07-29 16:25:00
DNA And African Ancestry Test Results
Her admixture test showed her ancestry to be 89% sub-Saharan African, 8% Native American, 3% East Asian (researchers said that Native American ancestral traces show up here too), and 0% European. Henry Louis Gates told Oprah that, no, [more...]
Date: 2007-09-11 12:15:00
Compare Autosomal DNA Tests for Genealogy and Adoption Search
Family Tree DNA plans to include a similar admixture test with Family Finder in the future.ADVANTAGE: Relative Finder 5. Health InformationAs noted before, 23andMe uses autosomal DNA testing to provide health information. It can measure your personal genetic risk for certain diseases, your status as a carrier for others, and your likely response to certain medications. It only includes those conditions with a proven genetic link. And it cant factor in environmental factors such as your personal diet, exercise, and exposure to toxic substances. Nevertheless, the health information provided [more...]
Date: 2010-04-22 07:00:00
21st Century British Nationalism: Neanderthal DNA Issues
Recent news that on average "Europeans" and "Asians" may possess up to 4% Neanderthal DNA not only reveals previously unknown genetic admixture, it pushes us to reframe the distinction between non-human and human descent. Geneticist Svante Pääbo, from the Neanderthal Genome Project, seemed to suggest this as he was reported saying, "Neanderthals are not totally extinct; they live on in some of us."2 With this new information the quest for the genetic "admixture" of modern humans has now formally extended beyond racially "mixed" family trees and into the "pre-historic" age. Some of our [more...]
Date: 2010-08-06 09:47:00
Wash Park Prophet: New Language Discovered
A Y chromosome DNA study from 2000 in "Human Genetics" entitled "Y chromosome haplotypes reveal prehistorical migrations to the Himalayas" by Bing Su, Peter Underhill, Luca Cavalli-Sforza, et al. showed "a strong genetic affinity" among all Sino-Tibetan populations, implying a strong genetic affinity among populations in the same language family, and found evidence of a strong bottleneck effect "in the Sino-Tibetan speaking populations in the Himalayas including Tibet and northeast India . . . that occurred during a westward and then southward migration of the founding population of [more...]
Date: 2010-10-06 16:56:00
The Genetic Genealogist | The Monday Morning DNA Testing Company ...
Admixture tests have many caveats. For instance, inheritance of autosomal DNA is completely random and no test can accurately predict your entire heritage. With every generation an ancestorâ€™s DNA contribution can be passed down in its entirety, in part, or not at all. As well, many scientists are still debating whether or not SNPs have the bio-geographic properties that make admixture tests possible. What if the SNP that is supposedly unique to Native Americans has also developed in a large but undetected European population? The test would misconstrue that SNP as being Native American [more...]
Date: 2007-02-26 14:06:19
African Ancestry & DNA Tests: The Results
They had researchers from African Ancestry (who I mentioned yesterday), University of Maryland, Pennsylvania State University, and Cambridge University do the DNA tests of genetic strands. There were three tests: an admixture test to give an overview of how African, European, Asian, etc. folks were (Mark Shriver, a white population geneticist at Penn State, talked about how surprised he had been by his own test - which had come back 86% European, 11% sub-Saharan African, and 3% Native American - and how his mother wanted him to stop publicizing these results). Then to test for specific [more...]
Date: 2006-02-09 16:35:00
race/history/evolution notes: Autosomal African admixture in ...
Another ASHG 2010 abstract. Using CEU and Maasai reference populations, the authors estimate Yemenis average about 14.8% African admixture. Autosomal African admixture in Yemeni populations. R. L. Raaum1, A. M. Al-Meeri2, C. J. Mulligan3 1) Anthropology, Lehman College & The Graduate Center, CUNY, New York, NY; 2) Biochemistry, Faculty of Medicine, Sana'a University, Sana'a, Yemen; 3) Anthropology, University of Florida, Gainesville, FL. Approximately 30% of mtDNA lineages in South Arabian samples are African L haplotypes, whose origin has usually been attributed to migration and [more...]
Date: 2010-09-08 18:58:00
Is it possible for Ashkenazic Jews to have slavic ancestry ...
Race & Ethnicity in Society Equality Issues, Group Competition, Affirmative Action, Supremacism, Intergroup Relationships, Impact of Biosciences on [more...]
Date: 2010-10-11 03:48:33
Black People : DNA by Ancestry admixture test
OK, this is a personal thread really, but if anyone has time to post a reply I’d be really greatful… I think I remember someone on Destee posting results they got off this test – not sure how many other people here might have had this done… Anyways I sent off for my results a couple of weeks ago and have another couple at least before I get any results… Now this is a question for those of you with some expertise in this genetics stuff – exactly what does the test result prove? I’d originally thought it would basically give me an idea of the proportions in my ethnic background [more...]
Date: 2010-10-10 04:47:06
Black People : DNA by Ancestry admixture test - Black People ...
Now this is a question for those of you with some expertise in this genetics stuff - exactly what does the test result prove? I'd originally thought it would basically give me an idea of the proportions in my ethnic background as in how many % black, native American etc that I am. Now I've become a little confused by the fact that apparently siblings can end up with different results - does this mean the test is really determining your own individual mix - I've heard tell of white sperm and black sperm coming from a mixed father, but have no idea if that's scientifically possible. I've also [more...]
Date: 2010-10-10 03:31:48
Dienekes' Anthropology Blog: EURO-DNA test
If you start with the a priori breakdown into 4 groups, then each individual will have 4 numbers that add up to 100%. One could just as easily have used a "Southwestern European", "Northeastern European", "Middle Eastern" and "South Asian" breakdown, and again each individual would have 4 numbers adding up to 100%. The trick is to start with a collection of individuals, remove identifying tags and cluster them, thus identifying the real genetic components in the population, if any such components can be detected. This was the procedure followed by Rosenberg et al. . In that analysis, [more...]
Date: 2004-08-28 03:29:00
Colorado: Hispano DNA study results released
Tracing the Tribe is a blog about Jewish genealogy - All the developments, tools and resources you'll need to peer more closely into your family tree. Created in 2006 at JTA's request, it is now independent. Tracing the Tribe readers may remember several posts concerning a cluster of "Ashkenazi" breast cancer among Hispanic women in Colorado's San Luis Valley a few years ago. Later genealogical research showed the women were descendants of conversos (Jews forced to convert to Christianity during the Inquisition) who had settled in the area centuries ago. A paper in the San Luis area just [more...]
Date: 2010-08-25 14:00:00