Your X-Chromosome Ancestry Report
The X chromosome traces a unique path through your family tree, revealing ancestry from specific lineages that autosomal DNA cannot isolate.
Results Ready
K9 and K23 analyses complete
Understanding Your X-Chromosome Heritage
The X chromosome follows a unique inheritance path, revealing ancestry from specific branches of your family tree.
Important: This analysis is specific to your X-Chromosome only, which follows unique inheritance patterns different from autosomal DNA. Your results here may differ from your main ancestry report—and that's expected.
For Males (XY)
Your single X-Chromosome comes entirely from your mother, reflecting your maternal lineage. This includes ancestry from your maternal grandmother and grandfather, your maternal great-grandparents, and further back along specific branches. Your father contributed no X chromosome to you.
For Females (XX)
You inherit one X-Chromosome from each parent. One X comes from your father (his only X, which he got from his mother), and one from your mother. This provides a broader but still unique view of your ancestry—connecting you to both grandmothers, but only one grandfather.
Two Levels of Analysis
Explore your X-Chromosome ancestry at different levels of resolution and confidence.
K9 Analysis (9 Populations)
Higher confidence analysis using 9 broad population categories. Provides clearer, more robust ancestry estimates with less statistical noise.
- Best for: Clear, confident ancestry overview
- Populations: Major continental and regional groups
- Confidence: Higher statistical certainty
K23 Analysis (23 Populations)
More detailed analysis with 23 population categories. Reveals finer ancestry distinctions and more specific population matches.
- Best for: Detailed ancestry exploration
- Populations: Specific ethnic and regional groups
- Coverage: Broader population representation
Your X-Chromosome Composition
Select an analysis level to explore your unique ancestry through the X-Chromosome pathway.
K9 X-Chromosome Composition
9 Population Categories
K9 Insights
- Higher confidence estimates
- Broad continental categories
- Less statistical noise
- Best for clear ancestry overview
K23 X-Chromosome Composition
23 Population Categories
K23 Insights
- More detailed breakdown
- Specific ethnic groups
- Broader population coverage
- Best for nuanced exploration
Technical Insights & Considerations
Understanding the science behind your X-Chromosome analysis.
X-Chromosome Inheritance
- Males inherit X only from their mother
- Females inherit X from both parents
- Reflects specific ancestral branches
- Complements autosomal ancestry analysis
Important Considerations
- Limited to X-Chromosome only
- Not a full genome analysis
- Results may differ from autosomal ancestry
- Some RAW files may lack sufficient X-Chromosome data
AI-Powered Analysis
Get personalized insights about your X-Chromosome ancestry.
AI ASSISTANT by DNAGENICS
This AI analysis is limited to geographical regions and percentage distributions from your X-Chromosome data. No additional personal information is included.
Try these questions:
Frequently Asked Questions
Your X-Chromosome follows a specific inheritance path through your family tree. Not all ancestors contribute to it—for example, a male's father contributes nothing to his X-Chromosome. This means your X ancestry reflects only certain lineages, which may differ significantly from your overall autosomal results. This is normal and expected.
K9 uses 9 broad population categories, providing higher statistical confidence with less noise. K23 uses 23 more specific categories, offering greater detail but with more uncertainty in smaller components. Both are included in your report, letting you explore at different levels of resolution.
Males (XY) receive their single X-Chromosome exclusively from their mother—their father contributes a Y chromosome instead. Females (XX) receive one X from each parent, but their father's X came from his mother. This means X-Chromosome ancestry is always more weighted toward maternal lineages.
Yes! X-Chromosome analysis can be valuable for genealogy because it follows specific inheritance patterns. You can use X-DNA charts to identify which ancestors could have contributed to your X-Chromosome, helping narrow down family connections and identify specific lineages.