Discover your inside story with AncestryDNA®
Showing posts with label Autosomal DNA. Show all posts
Showing posts with label Autosomal DNA. Show all posts

December 21, 2014

Baby Boy Hacht - Dead, or Kidnapped and Alive Today??

"A baby boy who was never named was born in July 1944, in Detroit, Michigan.  The family believes that he was kidnapped and another dead baby substituted for Baby Boy Hacht.  While at first this sounds improbable, if not incredulous, it isn’t." Source:DNAeXplained – Genetic Genealogy
Baby Boy Hacht's sister Patti and her brothers are looking for answers through the use of DNA. You, or someone you know, may be the key to this puzzle.

"The Y DNA of Baby Boy Hacht or his male child or male grandchild through a son will match that of Patti’s brother.  The autosomal DNA of Baby Boy Hacht or his children or grandchildren of any gender will match with Patti and her family." Source: DNAeXplained – Genetic Genealogy

 This incredible story needs no further explanation from me. Please read the full blog post at DNAeXplained – Genetic Genealogy


December 31, 2013

DNA Results Have Us Totally Surprised

The graphic on the left shows the surprising results of my husband's mother's DNA. 

As far as we knew she was solid English and W.A.S.P. lines as far back as 10 generations.

So the Yakut and Sub-Saharan African DNA, as small as it is, is a big surprise. I looked up Yakut and it is a small area in what is now Siberia so I'm guessing that's pretty far back in her ancestry. 

This is exciting for any genealogist and now hubs and I are embarking on a new quest. We want to see if there are gaps we missed in tracing his mom's side of the family tree. 

And of course the very exciting find which I talked about in a previous blog post called DNA Results Leave us Gob-Smacked!
is that the man who my mother-in-law thought was her grandfather, was not. DNA matches have proven that another man was her grandfather and we've narrowed the candidates down to two in a certain family. 

So I am going to research each of those two men's lines back as far as I can to see if we an spot a black ancestor there. We realize we're oversimplifying this task but we want to take a basic easy approach to the puzzle at this point. 

Wish us luck! Have you had any surprises in your DNA results?


October 6, 2013

Understanding Your DNA Results: Comparison Charts

DNA is the latest genealogy tool and I've had my DNA tested with 3 different companies now (with one more pending). I used Family Tree DNA, 23andMe.com and DNA-me for testing. Since I'm a woman I can only test my Mt-DNA or my Autosomal. I have to leave the Y-DNA tests to a male relative. 

DNA results are not easy to understand and I don't pretend to understand them very well at all. So what I have done is make a spreadsheet of the summary of my DNA results - the Haplogroup I am in, my genetic origins and my percentages of various ethnicities. 

Each test is likely to show different results depending on the number of markers that were tested and the algorithms used to interpret the test. So I expected to find some differences but that is what makes testing with more than one company worthwhile. In fact it's important if you want to understand your DNA in more depth.

Definitions

You also have to do a lot of reading (aka research) to increase your knowledge of DNA testing, the various tests and what the results mean. What I have gleaned (admititily just the tip of the DNA iceberg!) Is this: 

MtDNA - Maternal DNA is passed from mother to child (of either sex) and does not change over the generations. A female testing her MtDNA is testing her female lineage from herself to her mother to her mother's mother and so on. This is the X chromosome

Y-DNA - Paternal DNA tests the Y chromosome which is passed, unchanged, from father to son. Thus if you wish to test for your surname and you are a woman, you must find a male relative with that surname to take the test. Women do not have the Y chromosome (We are XX while men are XY)

Autosomal: Autosomal DNA recombines with every generation and that means the number of markers you share with a common ancestor is halved with each generation. 

Haplogroups: The Haplogroup your DNA indicates you belong to will show your deep roots, your heritage going back thousands of years.  

This is very basic but it's a start to understanding. There's no sense paying money for DNA tests and then just letting the results sit there because you don't understand what was tested or what the results mean.




My DNA Test Results

Here is the chart I've finished which shows the comparison of the 3 companies whose results are in. My 4th company is still running my DNA samples so I don't have that yet.


Family Tree DNA is the one marked as FT DNA. They do not narrow down my ethnic origins as much as 23andMe.com but you can see that they both agree the majority of my ethnic origins are European of some sort. 

DNA-me is the surprise with their finding of a smidgeon of African origin. And their Haplogroup assignment of JT also throws me a bit. I have more research to do to try to understand how that happened. I am pretty sure they didn't test very many markers and the more markers tested, the  more accurate the results.

You can also see that 23andMe.com has both Standard (75% accuracy) and Speculative (50% accuracy) results so I included them. The East Asian was interesting especially when I compared my test results to my brother's. Since his tests include the full Y chromosome testing there are bound to be some differences. And I love that 23andMe.com tests for your percentage of Neanderthal ancestry in your DNA! 

My Brother's DNA Results

For example even though we know we have Native American heritage on my father's side, it does not show on my results with any company. But it does show on my brother's results through 23andMe (but not Family Tree DNA) and on tests that Professor McDonald ran on my brother's Family Tree DNA raw data. Again this points out the importance of testing with more than one company. 



You can see that testing my brother's DNA confirmed our Native American heritage and the Asian heritage shown for me in both 23andMe and DNA-me testing. The big surprise was the Ashkenazi in his speculative results. It's important though to note that these results are only considered to have 50% accuracy. They may be correct but they are equally likely to be wrong. 

DNA Matches

I've also been studying and reading about how to compare raw data with matches found for me in each of the DNA company's databases. I'm getting better and can now narrow down the ethnicity we share (based on what chromosomes we match on). This obviously helps with figuring out who our common ancestor might be, but I have much more to learn. When I have that a bit more figured out I will post here. 

Meantime if there are any readers who understand what I've posted today better than I do (or better than my explanation) please do leave a comment so we can all learn from each other's knowledge.  

June 28, 2013

Sizzling Summer Sales at FamilyTreeDNA!

Join the Genealogy Revolution.
Search for your surname in the largest DNA database of its kind!

My Surname
Summer is once again upon us and it is time for Family Tree DNA Sizzling Summer event! Our successful summers over the last two years have led us to offer you great values again this year.

We have been working with Illumina to offer our Family Finder autosomal test for only $99 during our summer event. In fact, if we receive enough orders at $99, Illumina may be able to help us keep it at this extremely low of rate of $99!

As you take advantage of our summer event, remember that the permanency of the $99 Family Finder test is actually in your hands!

Beginning on Thursday, June 27, 2013 and running until Friday, July 26, 2013, we will offer the following:
        
  • Family Finder    was $289    Now $99
  • mtDNA Full Sequence    was $289    Now $189
  • Y-DNA37    was $169    Now $129
  • Y-DNA67    was $268    Now $208
  • Y-DNA111    was $359    Now $308
  • Family Finder + Y-DNA37    was $368    Now $228
  • Family Finder + Y-DNA67    was $467    Now $307
  • Family Finder + mtDNAFullSequence    was $398    Now $288
  • Comprehensive Genome (Y-DNA67, FMS & FF)    was $666    Now $496

REMEMBER: ALL ORDERS FOR THIS Family Tree DNA SALE MUST BE PLACED AND PAID FOR BY 11:59pm CST, JULY 26, 2013, TO RECEIVE THESE SPECIAL PRICES.