Why are ancestry DNA tests wrong?
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- Опубликовано: 15 сен 2024
- Spoiler alert: They’re probably not. It’s more likely they’re misunderstood.
Many people make the mistake of thinking they have an ancestor with “100%” of ancestry from a particular country. The reality is that no human has had “100%” ancestry from anywhere for at least 50,000 years. Everyone has ancestors who came from somewhere else.
Many people make the mistake of assuming that today’s country borders are the same as they were 200 years (or longer) ago. The reality is DNA doesn’t care about country borders at any given point in history.
Many people also make the mistake of assuming their last name is relevant to their genetics. The reality is that someone with an Italian last name could potentially be 14% “Italian” if they had children with non-Italians for just a couple generations in a row.
These conceptions and others are tackled in this video.
Visit www.crigenetic... to learn more.
I took ancestry dna test twice and got two different results
Hi Dale,
We care deeply about your experience and we would you to know Your “Biogeographical Ancestry” is a description of your place in the history of our species. It’s simply a breakdown of where your genes come from, according to the results of your DNA tests. Keep in mind we are testing the genetic origin and not the actual race since that is a very complex social construct.
We combine Genetics with Anthropology to trace the migrations of the human race. When we test your DNA against samples from around the globe, we can figure out where you fit in the rich history of our species.
Our tests examine 527, 414 specific markers across your entire genome. These markers are hand-picked based on the latest breakthroughs and advancements in genetic science. These markers are specially chosen for their relevance to tracing ancestry so that we can provide you with the most statistically likely estimation of your heritage.
Hope that you can provide us with more details of your results by reaching out to us.
We would be more than happy to assist you with your concern. Feel free to reach out to us by sending us an email at support@crigenetics.com or calling our customer care team USA 1-800-571-9216; UK +44-800-368-8243. You can also visit our website at www.crigenetics.com/ for more information. Take care.
Because they run different tests depending on the company!! If you ordered from 23andMe you’ll get only your maternal sides dna ancestry. No Y chromosome paternal dna. If you get the Ancestry DNA test you’ll get results from both as it tests both sides together and both paternal & maternal separately.
How different?
@@jadeeybaby he said he took ancestry twice
@@jadeeybabyhe only took ancestry dna test. He took it twice
The disparity between CRI Genetics and AncestryDNA is alarming. I’m left with the difficult proposition of whose results to believe. The difficulty is that I’ve zero ability to verify either. Were they remotely similar, I could accept both - but they’re not even close (races, regions, percentages, etc).
CRI Genetics is what genealogists normally choose/reccomend. It is the only company actually owned by scientists and the only one that has their own labs (they also can read smaller strands of DNA). Ancestry, on the other hand outsources their lab work to private 3rd party labs.
The reason for this is that while DNA is DNA and that doesn't change, each DNA company does have many differences. The differences are the algorithms we're using, our sample population databases, our genotypic chip, No call rates, Sample collection methods ( e.g. swab vs spit), and the genetic markers we're utilizing to generate your report. So you might be wondering, which one is right? The answer is they are both correct as our result will show your DNA originated from. It will add additional insight into your current report and help provide another interpretation of who your ancestors and DNA moved around throughout time. I hope that was helpful!
DNA does not lie. Most parents were not told where their parents are from. If you join ancestry you can meet cousins and maybe like me see a photos of great great grandparents you may never have known or seen.
I just mailed in my sample two days ago, I am excited to see the results!
Hello Bryce,
We look forward to receiving your samples back. We too are very much to get started with your test! have a great day!
Thanks for this! I had my dad do it seperately and it was accurate. He had higher percentages. My mother did it with you and I inherited mostly my Dad's DNA. The Asian/ Latina is predominant in my mother. She is African as well. If you could do a video breakdown on the Recent report vs. the Advanced analysis I would be grateful. It's so funny to have European/Asian features but be dark skinned. I've literally fit into Europe and in with Asians and they always said I was white or asian in a past life....they were literally referencing my ancestors jaja! It helps when your other family members to it as well x
Hoop
Not surprised that latine is dominant ;) thats a joke
I consider DNA genetics a interesting bit of information from companies like CRI. Yet without a extensive, involved ( and expensive) test with multitudes of markers your DNA test is just, as I take it, an indicator but NOT absolute.
We appreciate your comment and insights about this. Thanks for taking the time to bring this to our attention. We will use the feedback to make us better.
It's definitely not an absolute because the data they use to compare your dna to isn't from anyone's ancestors. It's based on what has been collected from recent years.
Each company will give you different results it's vary confusing I did 5
Thank you for your comment. There are plenty of factors as to why results may differ from one company to another, the factors that may affect the result are:
* Database that each company is using.
Some companies are just focused on a couple of categories like European while others, like us, will show all of your worldwide heritage that we can trace from your DNA regardless of the percentage.
* Algorithm being used.
Each company has different ways of extracting and making comparisons of DNA samples.
* How long the testing goes back.
Some companies focus on the last 5 generations. Others like us, CRI Genetics, not only show you the recent ancestry, but we are able to go up to 200,000 years back and we're the only company who can do that.
* SNPs used for testing and the amount.
Our SNPs are totally customized as we offer 642,824 SNPs significant genetic markers which are handpicked to test for ancestry across your entire genome.
* DNA Extraction method used to extract DNA from the cell. Many companies use spit to collect your sample, this is problematic because it must then undergo a heat inactivation process at the lab. Since saliva contains many digestive enzymes that deteriorate the DNA before it even reaches the lab, this will often result in failed Quality Analysis samples. Here at CRI genetics, we use a more expensive but reliable DNA swab method to collect that epithelial cheek cell directly
and extract your DNA.
* DNA Chip utilized.
It does not mean that any company is wrong or right, but rather they all work together to provide you with a more in-depth view of your ancestry. Similar to how you see that one ethnicity is prevalent yet you know that your DNA is another, ancestry tests will show you which regions your DNA comes from but again for the reasons above each company uses very different calculations to determine where that would be. In other words, if we look at the world now, then based on those populations your DNA would match those regions and proportions. But different methods are used by different companies to "decide" what regions it most closely resembles according to the generations analyzed because if the tests were matching your DNA to modern-day populations in 2020 then definitely it would not very closely reflect your "actual" DNA due to all the transcontinental travel and immigration that had occurred due to significant advancements in mobility during the recent years. So the algorithm needs to decide what really defines a region and not based on current-day political/geographical borders but rather genetic boundaries. We recommend you utilize all reports available to you to really understand your DNA on a deeper level as well as the different interpretations each company offers.
I don't understand why people are so freaking obsessed with finding their ETHNICITY. Race and ethnicities are not encoded in your DNA, people. I could do some test to find some things about genetic diseases, etc. What they can tell me about my ancestors when they have samples only of proxy population? I can do best guess too.
Thats cause they are fake. Anything fir a buck! And then people think that they were the first ones here in the americas and not the indigenous.
This might be a shocker to many, but most people “assume” they are part of a particular lineage, ethnic group, nationality, etc because they were told by parents, grandparents, relatives, etc. We expect certain DNA test results but when they turn up different we question the validity of them because we don’t take into consideration (or deny) other unfortunate and hidden factors that may have occurred within our family and not told: infidelity, unknown adoption, incest, rape, secret marriages, lying about one’s family lineage to protect oneself (or children) from persecution, etc and the list goes on. I just recently started to research my family line and discovered a lot.
Deciding which ethnic groups that given genes belong to in the first place is also unavoidably imprecise and arbitrary, because there are competing ways to do this, and it ends up being at least a little bit arbitrary and culturally relative.
At CRI Genetics, we strive to use rigorous scientific methods. Our goal is to provide the most accurate and informative genetic analysis possible.
The title is misleading. The tests aren’t wrong and this video explains literally exactly that. You don’t get exactly 50% from each parent, and when you take the test, that’s exactly what shows. Not exactly 50/50. Why the misleading title if you’re just explaining how the tests work?
Hi Mikki! Thank you for sharing your insights. What the video like give you an example: your DNA contains a record of your ancestors, but you aren’t a carbon copy of anyone of them. The particular mix of DNA you inherit is unique to you. You receive 50% of your DNA from each of your parents, who received 50% of theirs from each of their parents, and so on. If you go back far enough, there is a chance that you inherited no DNA from a particular ancestor. Different segment or called recombination of DNA's. Stay safe!
MY PROBLEM is that my CRI Advanced Ancestry Timelines suggests a large input from "British Aisles", "Northern Europe," as well was "Britain." How, then, when it estimates my recent ancestry, is it over 60% English? All 3 of the categories where I see you identified an ancestor he or she could have been Scandanavian not English. Also, In the list of my Advanced Ancestry Timelines the 4th generation time matches my grandparents and the 5th generation matches my great-grandparents time on earth. And it looks like a good DNA match as well, but they weren't all "English." I want a better breakdown in my Recent Ancestry report. I am 99% sure that "English" misses a lot of my ancestry.
Hi. The reason is DNA is very unpredictable and behaves quite differently. Please know that there are no specific genes that German people have that French people don't, or that Russians have and Polish don't, etc. We are all mixed-breed to some extent. Political boundaries change over time and mean little in terms of how DNA flows. Ancestry reports work by comparing your DNA to a known reference population. This is probably the most important point: Since you only get 50% of each parent's DNA (on average), and since the genes that are useful for admixture/ancestry are not evenly distributed across all 23 chromosomes, if you don't happen to get the chunk of, DNA that relates to your mother's Irish ancestry, you won't appear to be very Irish. Meanwhile, your full sibling may have gotten this segment, and more, appearing very Irish. In reality, your heritages are the same, so why the difference? It is due to the randomness of recombination. Since this is the way DNA works across generations, admixture results can only be used to rule in, not to rule out. I.e., absence of evidence is not evidence of absence. If you want to know which regions your ancestors came from, test more relatives. Pool the results. Understand that you may not have ANY DNA from one or more of your 32 3rd great grandparents (you may have fewer than 32 if your tree is endogamous). So, if that GGG grandmother was a particular ethnic group you will not know that you are that ethnic group -- unless someone else in your family tests and sees it.
I don't get, I'll never get how knowing one's DNA ancestry makes a difference in who you are. It's all marketing and BS.
Knowing your background gives you a deeper connection to all the corners of the world that your ancestors come from. We can help you confirm some things you already knew, and uncover some hidden surprises too. Get A Detailed, Accurate Breakdown Of Your Heritage. Our reports give you the level of detail you deserve.
ok leftie
I wonder how it works in identical twins…
Are the genealogical amounts the same in each other twin, or are they still random like any of your siblings?
Hi Shane! About your question, siblings share enough markers to determine filiation. However, if two brothers take a test, their results can vary due to mother and father's DNA splitting, and combining differently for every child.
There can be variance within what is available from each parent on which particular genes (and associated ancestry) they inherit. Although they would be similar, they can be somewhat different. Have a grate day!
I am not to fond of arbitrary percentages that dictates how I should perceive my identity. I believe that dna can show my general geographic ancestry to a certain group of people, but to say, for example, I am half 25% Khmer, 25 % Thai, and 50% German is all arbitrary. Meaning that cultures were all created and people adapt to cultures. We have a perceived bias on how a person should look based on their ethnicity or race, but people are adaptable and can look so many ways with different phenotypes and genotypes. In all, dna represents human genomes that make up our physical traits but being Khmer, Thai, or German represents our cultural upbringing. I'd rather be 100% of each and be proud of my ancestral heritage regardless of any small percentages.
Hi Maron,
Ancestral Background Analysis would test the combined DNA that you inherited from your Parents. The report would show you the breakdown of your Heritage/Ethnicity (European, African, etc.)
This test uses Autosomael genes and will compare it to our 527, 414 significant genetic markers.
Please keep in mind that when we say inherited DNA from Parents, it doesn’t mean that DNA or traits were passed down to offspring on a 50 - 50 distribution.
During conception, DNA from your Mother and Father will come together and would form a recombination process. Trait inheritance varies on how Dominant and Recessive the inherited Genes are.
Humans are more than just a label from a country. My point is that I can look like whatever mongloid, caucasoid, or negroid phenotypes/genotypes, humans are more complex and just a combination of DNA sequences. We adapt to cultures and adopt cultures as part of human survival. I’ve met French white people in Cambodia who swear they are 100% Cambodian because they are citizens and regardless of how they look. It’s arbitrary. Who cares how we look or sequences of dna.
I'm interested how do they determine what is 100% Irish. You can sample genes from people of some area, so in that sense it is considered by maps, and say what genes most of people share.
But what is the smallest size of that group, they can't tell you from your DNA the town you are from, and how much of it is objective or politicized?
Ancestral Background Analysis would test the combined DNA that you inherited from your Parents. The report would show you breakdown of your Heritage/Ethnicity (European, African, etc.) This test uses Autosomael genes and will compare it to our 642,824 significant genetic markers.
Please keep in mind that when we say inherited DNA from Parents, it doesn’t mean that DNA or traits were passed down to offspring on a 50 - 50 distribution. During conception, DNA from your Mother and Father will come together and would form a recombination process. Trait inheritance varies on how Dominant and Recessive the inherited Genes are.
We may not be able to go down and mention which specific town, but rest assured that we will let everyone know once we added new reports. For more inquiries, you may also contact us at P: USA 1-800-571-9216 ; UK +44-800-368-8243
E: support@crigenetics.com
Office Hours: Monday - Friday: 6AM-6PM PST ; Saturday - Sunday: 8AM-5PM PST
OK. I'm French-Canadian and I am not trying to not think ENDOGAMY
AND GENETIC DRIFT.
My question here is with the test is there data section specifically for your maternal and paternal results so there is a chance to focus on a particular time period and then anywhere beyond I guess I say, 5 generations is in its own category of data because I love the idea of knowing all steps taken by my ancestors but I do specifically want to find a focus. Only because as a average human being here lol I like to reach for something far more obtainable of understanding
Hi. We provide “BioGeographical Ancestry” which is a description of your place in the evolutionary and geographical history of our species. It’s simply a breakdown of where your genes come from, according to the results of your DNA tests. This is a combination of your father’s and mother’s heritage. You will be shown locations, percentages, and nationalities. But we will not be able to determine which genes comes from which side of the parent. None of any DNA testing companies can do that yet,
I did one of these tests, took about a month to get results, didn't tell me anything I didn't already know, fortunately I paid a discount price, I wouldn't recommend.
Could you please let us know what additional details or insights you were hoping to find in your results? This will help us better understand your needs and improve our services.
The only real way someone can be Jewish is through faith. Jew is not a race. It's a group of people who formed a sect and language, values etc. The face of the group looks like the Jews we see on TV, but in reality they can be any creed or color.
My DNA says 32% Welsh when only my one GG was from Wales, my dad’s side was from Shropshire England , 8% Ireland when I have Scotch Irish ancestors and little Irish ancestors, 9% England and Northwestern Europe when 2 of my GG were from England and one from Arcadia(Mertime provinces of French thst intermingled with the Micmac people), 2% Norway when none of my 5th or 6th GG were from Norway, 2% Germanic which has to do with my distant ancestors from The Netherlands, and 47% Scorland when my fsther’s side is my 5th GG, my 4th GG on my GG Ruth’s side(which makes me think my mystery maternal Grest grandpa from my maternal grandpa was from Scotland? Yet I’m thinking about doing 23&Me as well. Do to myself feeling discontent with my DNA results.
We would be delighted if you could send us a private message so we can review your results for you.
It’s all for entertainment purposes
nah, I'm adopted and my results correlate with what people have been telling me all my life. The mfs in the video are just terrified of this being used to justify racism, that's all. but tests are accurate
m.ruclips.net/video/Zx4xRZq2cZ0/видео.html
This is so interesting. If we all get half our DNA from each parent, why do DNA tests say that if you are female you cannot get info on your dad's side?
It sure seems like you got my DNA test wrong in as soon as I do a test with another company I'll be asking you for a retest
I understand you have tested with other DNA company, DNA is DNA and that doesn't change, each DNA company does have many differences. The differences are the algorithms we're using, our sample population databases, our genotypic chip, No call rates, Sample collection methods ( e.g. swab vs spit), and the genetic markers we're utilizing to generate your report. So you might be wondering, which one is right? The answer is they are both correct as our result will show your DNA originates. It will add additional insight into your current report and help provide another interpretation of who your ancestors and DNA moved around throughout time.
hello, i was going to purchase your product until i saw the black (african) figure shown in the video, is she based on a real person and is she actually in the lab? Thanks.
The figure you saw in the video is actually a cartoon character designed to represent the diversity of our community. She is not a real person and is not in the lab. Our goal is to visually convey the broad range of genetic backgrounds our product can analyze in a relatable and inclusive way.
You would purchase if there were no black people in the lab?
@@mlbrooks4066 yea i would. but since there was i wont
I am 98% Irish and 2% Swedish
another reason why ethnicity is far superior to material race. spiritual race is what really matters. rip evola.
I'm going to say Bayesian statistics, or other
"Dad Nigerian & mom Italian" haha, what a blow to the EU failed migrant policy lol
Proud to have never tested with earth's lousy technology. My ancestors up to 10 generations ago are Siriusians, up to 100 generations are Siriusians, and up to 1000 generations and older also Siriusians, people of Sirius 💙
The only 100% is our father Adam and he is from dirt.
True, Adam and Eve, but we can also all be traced back to Noah, his wife, 3 sons and their wives.
@@johnellwood8307which tests do that ?
@@johnellwood8307 why are you talking about fairytales?
@@FriendlyMaoist The Christian Bible, written by 40 authors over a span of 1,500 years, has been proven to be factual. Over 300 prophecies written well before the event upholds the credibility of things not seen or witnessed. Any objective look at the Bible would raise serious concerns about its authenticity, because if it is true, and evidence sure supports that it is, then woe to those who cannot grasp the reality. I do not poke fun at your beliefs, why should you do so to mine.
@@johnellwood8307oh wow, you poor child. Please go open a science book