Second Parent Ancestry
Using your DNA and one known parent's DNA, we mathematically reconstruct the genetic profile of your untested parent, and deliver a complete 21-page ancestry report with 15 analyses, from Neolithic deep ancestry to modern population matching. Results interpreted by Claude AI (Anthropic).
How It Works
By analyzing your DNA and your known parent's DNA, we mathematically estimate what your other parent's genetic ancestry looks like. This is based on the principle that you inherit approximately 50% of your DNA from each parent.
Other Parent ≈ (2 × Child DNA) − Known Parent DNA
What You'll Need to Provide
- Child's raw DNA file, Your DNA test results file
- Known parent's raw DNA file, DNA test results from your mother or father
Both files should be from the same testing company for best results (23andMe, AncestryDNA, MyHeritage, FTDNA, 24Genetics, ADNTRO…)
Your results are analyzed by Claude, Anthropic's AI model, which provides a personalized narrative explaining what the reconstructed second parent profile reveals about their ancestry, historical origins, and population heritage, giving your untested parent a genetic identity.
Your result is computed by genetic similarity: we measure the mathematical distance between your genetic profile and each reference population, then find the mixture that best reproduces your DNA. Every reference population in our panel uses real, official G25 coordinates (published academic ancient-DNA studies and the official Global25 dataset), none of our reference data is simulated or synthetic. The reference populations are statistical proxies, not proof of literal descent from any one group. Large, distinct signals (your broad continental ancestry) are reliable, while genetically overlapping populations are harder to separate cleanly, so the fine detail is more of an educated estimate, especially if you are heavily mixed. We tell you this plainly because honesty matters more than a flashy number.
What's Included, 15 Analyses in One Report
Every report covers your estimated parent's ancestry at every depth, from 10,000-year-old migrations to modern population matches, with AI-written interpretation for each section.
See what your report looks like
Click to open a full sample report, all sections included
🇮🇹🇫🇷 North Italian Father Estimation
Best guess: Lombard · 82.0% Lombardy + 18.0% Tuscany · Neolithic, Ancient, PCA, Dendrogram, 2/4/8/16-way models included
🇲🇦🇫🇷 Moroccan Father Estimation
Best guess: Moroccan Arab · 80.0% Moroccan + 20.0% Algerian · Neolithic, Ancient, PCA, Dendrogram, 2/4/8/16-way models included
What You'll Need
🔒 100% Automated & Private
All DNA data is processed entirely by our secure algorithms. No human ever sees your raw DNA data. Your files are permanently deleted immediately after generating your report. We never store, share, or sell your genetic information.
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