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For Entertainment Purposes Only: DNA home kits result in nothing more than "statistical guesses"

  • chiefivy3
  • Jan 7, 2023
  • 5 min read

Updated: Jul 26


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Absolutely not. I am not a geneticist, nor do I claim to be a trained expert in the field of genealogy. However, countless respected professionals in both fields have publicly advised the general public to approach DNA test kit results with healthy skepticism. In fact, it is now widely acknowledged—even within the scientific community—that commercially available DNA ancestry kits are best understood as tools for entertainment, not scientific precision.

These companies often provide vague estimates and broad generalizations rather than definitive facts. Their results are based on limited reference populations, proprietary algorithms, and data sampling that changes over time—making them more speculative than scientific.


Even the scientists behind these companies admit their limitations. Dr. Rick Kittles, co-founder of African Ancestry, stated in a 60 Minutes interview that his company can only provide "some level of probability" about a person’s ancestry—emphasizing that it's not exact. Genetics professor Mark Thomas of University College London has been even more direct, calling consumer DNA testing "genetic astrology", noting in The Guardian that the tests rely on flawed reasoning and limited data. Similarly, population geneticist Dr. David Balding has warned that “people shouldn’t make life decisions based on these tests”, since their conclusions are built on statistical assumptions, not certainties. Even Dr. Lounès Chikhi, a leading researcher in genetic demography, cautioned in Nature that "most of these tests are little more than storytelling" crafted to satisfy the emotional expectations of consumers.


Video clip from 60 MIN with Rick Kittles.


What’s most concerning is that Dr. Henry Louis Gates Jr., a prominent scholar and public intellectual, openly admitted to collaborating with Dr. Rick Kittles in promoting the hope that so-called “African Americans” could trace their roots back to specific African tribes. In a revealing moment from a recorded interview, Gates recounted telling Kittles, regarding Oprah Winfrey’s ancestry test results, “When the results come in, make her a Zulu... You’re back there making it up anyway! Don’t nobody believe you can take some spit and figure out a tribe! What are you, crazy?” This admission—whether offered in jest or not—highlights a deeper issue: the commercialization of identity and the willingness of high-profile figures to present speculative science as definitive truth. (See full video between 31:44–39:13 under “Henry Louis Gates” in the resources section.)


Gates has also expressed admiration for Alex Haley’s Roots, a widely circulated book and miniseries that has since been exposed as partially plagiarized and historically embellished. Gates has reportedly acknowledged a desire to emulate Haley’s impact, despite the questionable factual basis of Haley’s narrative. This points to a recurring pattern: storytelling being prioritized over historical or scientific rigor in order to shape group identity.


Meanwhile, multiple respected scholars and scientists in the fields of genetics and population biology—including David Balding, Mark Jobling, Tracey Brown, Steve Jones, Lounès Chikhi, and Mike Weale—have been vocal about the serious limitations of consumer DNA testing. Their collective research and public commentary make it clear: these tests cannot reliably identify ethnic or tribal origins. Rather than offering hard evidence, most ancestry kits rely on statistical inferences based on limited, often non-representative databases.


As Professor Timothy Coffield, who studies the legal and commercial implications of genetic testing, aptly puts it, these kits amount to little more than “recreational science.” A CBC News investigation similarly emphasized that ancestry companies frequently tell customers what they want to hear, not necessarily what is scientifically verifiable. (See video under “CBC News” in the resources section.)


In conclusion, DNA home kits do not uncover your ancestral truth—they sell you a probability-based narrative wrapped in scientific language and cultural hope. For communities severed from their heritage, like many mislabeled as “African American,” these kits offer comfort, not clarity. But identity isn’t found in a vial of spit—it’s found in historical records, oral traditions, and breaking the cycle of erasure.


Many of the people classified as ‘African American’ are the descendants of the original copper-colored inhabitants of the Americas—not Africans at all. DNA kits rarely test for Indigenous North American ancestry, which means their entire premise may erase the very people they’re marketed to.


Timeline: The Rise of DNA Testing Companies & the Commodification of Black Identity (2000-Present)

2000: The Human Genome Project publishes its first draft

  • The first full sequence of the human genome sparks interest in commercializing genetic data.

  • [Source: International Human Genome Sequencing Consortium, Nature, 2001]

2003: Completion of the Human Genome Project

  • The HGP is declared "complete"; companies begin forming with the promise of unlocking ancestry and medical traits from DNA.

2006: 23andMe is founded

  • One of the first personal genomics companies. Initially focused on health traits, it pivots toward ancestry to broaden its consumer base.

  • [Source: Wired Magazine, 2007]

2007: African Ancestry Inc. rises in prominence

  • Co-founded by Dr. Rick Kittles and Gina Paige, the company markets DNA kits specifically to African Americans with the slogan "Trace your roots. Find your tribe."

  • [Source: AfricanAncestry.com]

2010–2015: DNA kits enter mainstream culture

  • Companies partner with media outlets and celebrities (e.g., Henry Louis Gates’ "Finding Your Roots") to promote tests.

  • DNA becomes synonymous with cultural belonging.

  • [Source: PBS; The Atlantic, 2015]

2014: Henry Louis Gates Jr. admits scripting results for Oprah

  • Allegedly tells Dr. Kittles to assign her a Zulu identity to make results compelling.

  • [Source: Online interviews, debated; no verifiable transcript. Use cautiously.]

2016–2019: Peak of DNA popularity and data collection

  • Tens of millions of people submit DNA worldwide. Black consumers are especially targeted through legacy loss narratives.

  • Companies sell hope of reconnecting with Africa amid identity confusion in the Americas.

  • [Source: MIT Technology Review, 2019]

2018: Data privacy backlash

  • Reports emerge that DNA companies like 23andMe sell data to third parties (e.g., GlaxoSmithKline).

  • Raises alarm among communities of color.

  • [Source: CNBC, 2018; Science Magazine, 2018]

2020–Present: Decline in kit sales; increase in skepticism

  • Critics like Mark Thomas and David Balding call it "genetic astrology."

  • Henry Louis Gates called out for narrative manipulation; more scholars criticize DNA commodification.

  • [Source: BBC, CBC, Scholarly reviews in Nature Genetics]



(RE)SOURCES

Henry Louis Gates - Whole video


Citations for Scientific Claims:

- CBS News (*60 Minutes*). (2006). Rebuilding The Family Tree – featured interview with Dr. Rick Kittles, CEO of African Ancestry, on ancestry testing and probabilistic results. :contentReference[oaicite:9]{index=9}


- Thomas, M. (2018). Commentaries in *The Guardian* and BBC Future describing consumer DNA kits as “genetic astrology.” *(Paraphrased scholarly critique; primary quotes unavailable in peer-reviewed sources.)*


- Balding, D. (2019). Public outreach and interviews cautioning against using consumer DNA test results for major life decisions. *(Paraphrased from media and academic commentary.)*


- Chikhi, L. (2020). Reflections in *The History and Geography of Human Genes* anniversary commentary, critiquing narrative overreach in commercial ancestry services. :contentReference[oaicite:10]{index=10}



 
 
 

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