#dnatest — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #dnatest, aggregated by home.social.
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Has anyone taken a DNA test, searching for family info? Which service did you use, and is privacy good? Can I remove access to my data for everyone else? Thank you. #Genealogy #DNAtest
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https://www.europesays.com/africa/211151/ Uganda’s Army Chief Says He’s 14% Greek and Linked to Alexander the Great #AlexanderTheGreat #DNATest #GreekAncestry #MuhooziKainerugaba #TurkeyUgandaRelations #Uganda #UgandaArmyChief #UgandaMilitary #YoweriMuseveni
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When Twins Have Different Fathers: The Rare Biology Behind a Very Real Plot Twist
A rare case of heteropaternal superfecundation explained as DNA results reveal twins with different fathers.Dear Cherubs, every now and then, biology strolls in wearing a trench coat and refuses to explain itself. Heteropaternal superfecundation is one of those rare cases: fraternal twins who share the same mother but have different biological fathers, confirmed by DNA rather than family gossip and a raised eyebrow.
HOW THE MATH WORKS
The setup is surprisingly straightforward, which is perhaps the most unsettling part. A woman has to release two eggs in the same fertile window, and sperm from two different men has to be present close enough together to fertilize both eggs before the window closes. As McGill’s Office for Science and Society explains, the result is not identical twins with a mystery twist; it is simply two separate conceptions happening in the same cycle.
Because the twins come from two different eggs, they are dizygotic, or fraternal, twins. Genetically, that means they are like ordinary siblings born at the same time: they share their mother, but each twin can inherit a different paternal genetic package. A 2021 review in Twin Research and Human Genetics notes that heteropaternal twinning is a naturally occurring event and that such twins share, on average, about 25% of their segregating genes, the same rough level as half-siblings.
That is why DNA testing is the moment the story goes from “huh, interesting” to “well, this got complicated fast.” A 2016 Guardian report on a Vietnamese case described how family members noticed the twins did not look alike, prompting testing that confirmed different fathers. The same basic pattern has appeared in later case reports, including a 2020 Colombian case report and a 2025 forensic DNA case study.
WHY DOCTORS CARE
For clinicians and forensic labs, the big issue is not the tabloid drama. It is that ordinary assumptions can fail. If professionals test only one twin and assume the result applies to both, the paperwork can go sideways in a hurry. A 2015 paper on forensic implications warned that twin paternity cases need careful DNA work because one twin can test differently from the other.
The famous “how rare is it?” question comes with a giant asterisk. A 1992 study reported a 2.4% frequency among dizygotic twins in paternity-suit cases, but that is not the same as saying 2.4% of all twins have different fathers. It is a selected legal sample, which is a very specific corner of the universe and not exactly a general population survey.
So yes, the phenomenon is real, documented, and rare enough to make people do a double take. But it is not magic, and it is not a myth either. It is just one of those awkward little biological edge cases where nature decides to skip the polite version and go straight to the paperwork nightmare. According to thisclaimer.com, it is exactly the kind of story that keeps people clicking, because reality is occasionally much stranger than the average dinner-table theory.
Sources:
The Thisclaimer logo blends a classic warning symbol with a brain icon to represent critical thinking, curiosity, and thoughtful disclaimers. #biology #dna #dnaTest #forensicDna #fraternalTwins #genetics #health #heteropaternalSuperfecundation #medicalCuriosity #news #paternity #rareBiology #reproductiveScience #science #twins #viral #ViralVideo
PubMed — https://pubmed.ncbi.nlm.nih.gov/34428681/
PMC case report in Colombia — https://pmc.ncbi.nlm.nih.gov/articles/PMC7808779/
PubMed frequency study — https://pubmed.ncbi.nlm.nih.gov/1488855/
The Guardian — https://www.theguardian.com/world/2016/mar/09/twins-with-different-fathers-born-in-vietnam
McGill University Office for Science and Society — https://www.mcgill.ca/oss/article/medical-student-contributors-did-you-know/how-have-twins-different-fathers
thisclaimer.com — https://thisclaimer.com -
https://www.europesays.com/no/183009/ Charles og Camillas «ukjente sønn»: Røpte stor nyhet #adopsjon #adoptert #arverekke #arverekkefolge #Australia #BritiskeKongefamilien #BritiskeKongelige #DNA #DnaTest #DronningElizabeth #england #Entertainment #gjenforening #HertuginneCamilla #jubileum #Kongelig #NO #Norge #Norway #nyfødt #pluss #prins #PrinsCharles #PrinsWilliam #sønn #Underholdning
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https://www.europesays.com/no/181692/ Charles og Camillas «ukjente sønn»: Røpete stor nyhet #adopsjon #adoptert #arverekke #arverekkefolge #Australia #BritiskeKongefamilien #BritiskeKongelige #DNA #DnaTest #DronningElizabeth #england #Entertainment #gjenforening #HertuginneCamilla #jubileum #Kongelig #NO #Norge #Norway #nyfødt #pluss #prins #PrinsCharles #PrinsWilliam #sønn #Underholdning
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‘I clicked on a button – and everything changed’: how a DNA test turned my life upside-down.
When I found out my father had been adopted, I was curious to know more about his side of the family.
Nothing could have prepared me for what I would discover…
#Genealogy #Family #IVF #Parents #Genetics #DNATest #Longread
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She Was Given Up by Her Chinese Parents—and Spent 14 Years Trying to Find a Way Back
https://web.brid.gy/r/https://www.wired.com/story/china-adoption-birth-parents/
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Genomics Test: What is a genomics test?
https://vaartha.com/health/what-is-a-genomics-test/609778/
#GenomicsTest #Genomics #WhatIsGenomics #DNATest #GeneticTesting #GenomeTesting #HealthTest #GenomicScience #MedicalGenetics #DNASequencing #PersonalizedMedicine #GeneticHealth #GeneTest #GenomicsExplained #HealthCheck #Biotech #GenomeAnalysis #GeneticInfo #ScienceExplained #HealthAwareness -
Genomics Test: What is a genomics test?
https://vaartha.com/health/what-is-a-genomics-test/609778/
#GenomicsTest #Genomics #WhatIsGenomics #DNATest #GeneticTesting #GenomeTesting #HealthTest #GenomicScience #MedicalGenetics #DNASequencing #PersonalizedMedicine #GeneticHealth #GeneTest #GenomicsExplained #HealthCheck #Biotech #GenomeAnalysis #GeneticInfo #ScienceExplained #HealthAwareness -
Genomics Test: What is a genomics test?
https://vaartha.com/health/what-is-a-genomics-test/609778/
#GenomicsTest #Genomics #WhatIsGenomics #DNATest #GeneticTesting #GenomeTesting #HealthTest #GenomicScience #MedicalGenetics #DNASequencing #PersonalizedMedicine #GeneticHealth #GeneTest #GenomicsExplained #HealthCheck #Biotech #GenomeAnalysis #GeneticInfo #ScienceExplained #HealthAwareness -
Genomics Test: What is a genomics test?
https://vaartha.com/health/what-is-a-genomics-test/609778/
#GenomicsTest #Genomics #WhatIsGenomics #DNATest #GeneticTesting #GenomeTesting #HealthTest #GenomicScience #MedicalGenetics #DNASequencing #PersonalizedMedicine #GeneticHealth #GeneTest #GenomicsExplained #HealthCheck #Biotech #GenomeAnalysis #GeneticInfo #ScienceExplained #HealthAwareness -
Werkstattgespräch: Historische und genetische Genealogie
Im Werkstattgespräch am 18. Dezember 2025 „Historische und genetische Genealogie: Was heißt eigentlich ‚genetisch‘ oder ‚entfernt‘ verwandt?“ geht es darum, wie die Verwandtschaft an archäologischen Funden, die älter als 100 Jahre alt sind, und mit populären DNA-Test-Kits für heute lebende Menschen bestimmt wird. Dr. Harald Ringbauer, Leiter der Abteilung Archäogenetik am Max-Planck-Institut für Evolutionäre Anthropologie, Leipzig, informiert über die […]https://www.compgen.de/2025/12/werkstattgespraech-historische-und-genetische-genealogie/
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Werkstattgespräch: Historische und genetische Genealogie
Im Werkstattgespräch am 18. Dezember 2025 „Historische und genetische Genealogie: Was heißt eigentlich ‚genetisch‘ oder ‚entfernt‘ verwandt?“ geht es darum, wie die Verwandtschaft an archäologischen Funden, die älter als 100 Jahre alt sind, und mit populären DNA-Test-Kits für heute lebende Menschen bestimmt wird. Dr. Harald Ringbauer, Leiter der Abteilung Archäogenetik am Max-Planck-Institut für Evolutionäre Anthropologie, Leipzig, informiert über die […]https://www.compgen.de/2025/12/werkstattgespraech-historische-und-genetische-genealogie/
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Mom notices the boy she adopted looks a lot like her biological son, so she gets a DNA test
https://web.brid.gy/r/https://www.upworthy.com/her-adopted-son-looked-too-much-like-her-husband-ex1
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Dad demands DNA test after daughter is born with the 'wrong' eye and hair color
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𝗗𝗡𝗔-𝘁𝗲𝘀𝘁 𝗴𝗲𝗲𝗳𝘁 𝗱𝘂𝗶𝗱𝗲𝗹𝗶𝗷𝗸𝗵𝗲𝗶𝗱: 𝘀𝘁𝗮𝗹𝗸𝗲𝗿 𝗳𝗮𝗺𝗶𝗹𝗶𝗲 𝗠𝗮𝗱𝗱𝘆 𝗠𝗰𝗖𝗮𝗻𝗻 𝗶𝘀 𝗻𝗶𝗲𝘁 𝗵𝗲𝘁 𝘃𝗲𝗿𝗺𝗶𝘀𝘁𝗲 𝗺𝗲𝗶𝘀𝗷𝗲
Julia Wandelt, een jonge vrouw die zegt Madeleine McCann te zijn, heeft te horen gekregen dat ze niet het vermiste peutermeisje is. Bij de 24-jarige vrouw was een DNA-test afgenomen die duidelijkheid bood, schrijft de BBC.
https://www.rtl.nl/nieuws/buitenland/artikel/5533579/dna-test-madeleine-mccann
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𝗗𝗡𝗔-𝘁𝗲𝘀𝘁 𝗼𝗻𝘁𝗵𝘂𝗹𝘁 𝘃𝗲𝗿𝘄𝗶𝘀𝘀𝗲𝗹𝗶𝗻𝗴 𝗯𝗶𝗷 𝗴𝗲𝗯𝗼𝗼𝗿𝘁𝗲: 𝗽𝗮𝘀 35 𝗷𝗮𝗮𝗿 𝗹𝗮𝘁𝗲𝗿 𝗼𝗻𝘁𝗺𝗼𝗲𝘁𝗲𝗻 𝘃𝗿𝗼𝘂𝘄𝗲𝗻 𝗯𝗶𝗼𝗹𝗼𝗴𝗶𝘀𝗰𝗵𝗲 𝗼𝘂𝗱𝗲𝗿𝘀
Een verwisseling tussen twee pasgeborenen in een ziekenhuis in Zuid-Oostenrijk is na tientallen jaren opgelost. Beide families hadden na de geboorte van hun kinderen geen idee dat ze de verkeerde baby mee naar huis kregen. Door...
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“#Father of the Year” Fakes #DNATest to Avoid Paying $125,000 in #ChildSupport
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Private DNA-Tests: Medizinische Ungenauigkeiten, mangelnder Datenschutz
#TVTipp. Weltweit haben schon fast 50 Millionen Menschen DNA-Tests auf eigene Kosten gemacht. Eine Dokumentation des Fernsehsenders #Arte beleuchtet nun die Kommerzialisierung der genetischen Daten: Dienstag, 27. Mai, 20.15 Uhr.
https://www.pharmazeutische-zeitung.de/medizinische-ungenauigkeiten-mangelnder-datenschutz-156157/
#Ahnenforschung #PharmazeutischeZeitung #DNAGenealogie #DNATest #TV #OlivierToscer #Blackstone #Ancestry #BigBrotherAward #ThiloWeichert #Datenschutz
@ahnenforschung -
Stiftung Warentest hat fünf Anbieter von DNA-Tests zur Ahnenforschung geprüft
#DNAGenealogie. Der Vergleich zeigt Stärken, Schwächen und Datenschutzrisiken bei Herkunftsanalysen und Verwandtschaftsmatching.
#paywalled #Ahnenforschung #StiftungWarentest #Ancestry #MyHeritage #23andMe #FamilyTreeDNA #LivingDNA #DNA #Ethik #Datenschutz #Strafverfolgung #Völkerwanderung #Ethnie #GEDCOM #Test #Vergleich #DNATest #DSGVO #AGB #Herkunftsanalyse
@ahnenforschung -
Citizen-Science-Wettbewerb der Universitätsstiftung Münster
https://www.compgen.de/2025/04/citizen-science-wettbewerb-der-universitaetsstiftung-muenster/
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#News #CNN How to delete your 23andMe account
How to delete your 23andMe account Privacy advocates are urging 23andMe users to request the deletion of their accounts and data from the site, following the company's bankruptcy filing. CNN's Clare Duffy walks you through how to do it. #CNN #news #23andme #dna #dnatest from CNN #CNN Check out the short video for this article here💛
https://www.shibuyaworldnews.online/news-cnn-how-to-delete-your-23andme-account/
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#DNATest abgeblasen: Staatsanwaltschaft #Regensburg stellt Ermittlungen wegen Anti-#AfD-Graffiti ein https://www.regensburg-digital.de/dna-test-abgeblasen-staatsanwaltschaft-regensburg-stellt-ermittlungen-wegen-anti-afd-graffiti-ein/24032025/
#news -
𝗩𝗮𝗻 𝗱𝗲𝗿 𝗦𝗽𝗲𝗸: 𝘃𝗲𝗿𝗯𝗮𝗮𝘀𝗱 𝗼𝘃𝗲𝗿 𝗹𝗮𝗮𝘁 𝗴𝗲𝗯𝗿𝘂𝗶𝗸 𝗗𝗡𝗔-𝘁𝗲𝘀𝘁 𝗯𝗶𝗷 𝗦𝗽𝗼𝗼𝗿𝗹𝗼𝗼𝘀
Het heeft misdaadjournalist Kees van der Spek "enorm verbaasd" dat DNA-onderzoek bij het KRO-NCRV-programma Spoorloos pas gangbaar werd vanaf 2018. Hij maakte in 2014/2015 zelf een programma waarin "al volledig werd geleund op DNA-onderzoek", zei hij donderdag in de rechtbank in Utrecht. Daar...
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📬 DNA-Testfirma verschwunden – Tausende Kunden stehen im Regen
#Datenschutz #AlanWoodward #AtlasBiomed #DNAAnalyse #DNADatenbank #DNATest #DNATestfirma https://sc.tarnkappe.info/347a6c -
Ahnenforschung per DNA: Warum ein Gentest Ihnen nichts verrät, aber anderen alles
#DNAGenealogie. Seit Jahren ist es in Mode, mittels DNA-Test die eigene Abstammung zu erforschen – und vielleicht entfernte Verwandte zu finden. Zum Spartarif. Die Anbieter locken Interessierte aber auf eine zwielichtige Fährte.
#Ahnenforschung #DNA #MDRWissen #MDR #Datenschutz #MartinModer #ScienceBusters #RainerMühlhoff #Ethik #Ethnie #DNATest #Gentest #Abstammung
@ahnenforschung -
Looking for a new podcast to get you through the weekend?
The Donor: A DNA Horror Story is the absolutely true story of Hal - an anonymous sperm donor in the 1980's who inadvertently lost his donor anonymity when he joined 23AndMe.
Suddenly 7 total strangers found "daddy". Except six of them had no idea their biological father was actually a sperm donor.
Even if you've heard a thousand podcasts, you've never heard this story before.
#podcast #podcasts #donorpodcast #thedonorpodcast #dna #dnatest
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𝗪𝗮𝗮𝗿𝗼𝗺 𝗚𝘆𝗽𝘀𝘆 𝗥𝗼𝘀𝗲 𝗕𝗹𝗮𝗻𝗰𝗵𝗮𝗿𝗱 𝗽𝗮𝘀 𝗻𝗮 𝗵𝗮𝗮𝗿 𝗯𝗲𝘃𝗮𝗹𝗹𝗶𝗻𝗴 𝗲𝗲𝗻 𝗗𝗡𝗔-𝘁𝗲𝘀𝘁 𝘄𝗶𝗹 𝗱𝗼𝗲𝗻
In maart dit jaar kondigde Gypsy Rose Blanchard (32) aan dat zij en Ryan (37) uit elkaar waren en slechts een maand later maakte ze haar nieuwe relatie met Ken Urker (31) wereldkundig. De twee lieten er geen gras over groeien, want in juli kondigde Gypsy Rose haar zwangerschap...
https://www.rtl.nl/boulevard/entertainment/artikel/5466748/gypsy-rose-blanchard-dna-test
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𝗩𝗹𝗮𝗮𝗺𝘀𝗲 𝗽𝗼𝗹𝗶𝘁𝗶𝗲 𝘃𝗼𝗲𝗿𝘁 𝗗𝗡𝗔-𝘁𝗲𝘀𝘁 𝘂𝗶𝘁 𝗼𝗺 𝗱𝘂𝗺𝗽𝗲𝗿 𝗽𝗮𝘀𝗴𝗲𝗯𝗼𝗿𝗲𝗻 𝗸𝗶𝘁𝘁𝗲𝗻𝘀 𝘁𝗲 𝘃𝗶𝗻𝗱𝗲𝗻
De Vlaamse politie gaat naar eigen zeggen een stap verder om de dumper van vier kittens op te sporen. Er zijn voor het eerst DNA-stalen genomen via de pasgeboren beestjes om zo degene die ze eerder deze maand levend achterliet in een vuilnisbak bij een bushalte in...
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DNA-Test: Polizei bestätigt Tod von vermisstem Arian
Es deutete alles darauf hin, dass es sich bei der Kinderleiche auf einem Feld in Niedersachsen um den seit Wochen vermissten Arian handelt. Jetzt hat die Polizei dies nach einer DNA-Untersuchung offiziell bestätigt.
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#Singledad receives letter from #latewife and immediately gets a #DNAtest
https://www.upworthy.com/dying-wife-writes-letter-to-husband-rp4
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So I'm getting tantalisingly close, but still waiting for that crucial first estimate of when the ancestor I share with some Derbies in America was born.
I think we're close to some of the connections on paper, but it will be hard to get any closer. DNA is a nifty extra tool to see if I'm on the right track.
#Ancestry #Genealogy #FamilyHistory #DNATest #FamilyTreeDNA #YDNA
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A while back I upgraded to the Big Y-700 test with FamilyTreeDNA. Problem is, it takes months for the DNA sequencing to be done, then weeks to get a broad haplogroup (most recent common ancestor a few thousand years ago), then a more precise haplogroup (more recent common ancestor), then a list of matches and an estimate of how many years ago the most recent common ancestor was born.
#Ancestry #Genealogy #FamilyHistory #DNATest #FamilyTreeDNA #YDNA
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Viele Männer in Uganda zweifeln die Vaterschaft ihrer Kinder an. Politiker wittern eine Verschwörung der LGBITQ-Gemeinschaft.
Ugandas Männer zweifeln Vaterschaften an: Ist das wirklich mein Kind? -
3 months after the death of her father, #KyoMaclear discovers that he was not her biological father. In her search for answers, Kyo weaves thru histories personal, social & political in a lucent language. Making connections to plants & micro seasons, Kyo’s complex relationship with her mother is revealed in fragments, moving back & forth through time, a bee’s dance of interconnections to map a way toward. I loved this wise & brave book. #unearthing is a gift to the world. #memoir #cnf #DNATest
