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Ydna אירופאי באפרו אמריקאים גבוה פי 4 מmtdna אירופאי וגבוה אפילו מהממוצע של התערובת הלבנה בdna האוטוזומלי

blackarch

steppe warrior
ספט׳ 7, 2026
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ממש נאנסו חזק חחחחחח זה למה הם האוכלוסיה השחורה הכי מתקדמת ועשירה בעולם


Americans are roughly 28% to 35%, which is higher than their overall average autosomal European ancestry of about 16% to 20%. [1, 2]

Why the Difference Exists
    • Sex-Biased Gene Flow: Historical genetic studies, such as research published in PubMed, show that the American slavery era involved asymmetric or sex-biased reproduction. [1, 2, 3]
    • Paternal vs. Maternal Lines: Enslaved African women's maternal lineages (mitochondrial DNA) were largely preserved, while European men disproportionately contributed to the paternal lines (Y-DNA). [1]
    • Autosomal vs. Chromosomal: Because autosomal DNA averages out across all ancestors over generations, the total percentage of European DNA across the entire genome remains lower (around 20%) compared to the specific unbroken direct paternal Y-chromosome lineage. [1, 2, 3]

Would you like to explore specific Y-DNA haplogroups found in African American populations or look into regional variations across different U.S. states?



National Institutes of Health (NIH) | (.gov)

Elevated male European and female African contributions to the genomes of African American individuals - PubMed
15 בינו׳ 2007 — A 2007 study found that European males and African females have elevated contributions to the genomes of African American individuals. The study found that: * *

Wikipedia

African Americans - Wikipedia
Most African Americans are of West African and coastal Central African ancestry, with varying amounts of Western European and Native American ancestry (see § ..
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FamilyTreeDNA Blog

How Y-DNA Testing Transforms African American Genealogy
16 ביוני 2026 — As a result, science and research studies show that roughly 35–40% of African American males who take a Y-DNA test carry a European haplogroup. This is directly...
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ResearchGate

(PDF) Elevated male European and female African contributions to the ...
The European genetic contributions were highest (and African lowest) for the Y chromosome (28.46%), followed by the autosomes (19.99%), then the X chromosome ( ...
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Facebook·Ancestry-23&me-FTDNA-GEDmatch-DNA-andMore Open Discussion

What does a small percentage of European DNA mean in ancestry ...
21 באפר׳ 2026 — This asymmetry arises because enslaved women's African maternal lines were overwhelmingly preserved, while European males contributed disproportionately to pate...
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