Does 866 cM shared suggest half aunt rather than aunt?

Question

There is a joke in my family that my father's father is not his biological father. He only has sisters and his father is dead, so there's no possibility of a true test. But I'm his daughter and I did a DNA test, and here's what I got.

I got DNA results back and here's what it says about one of my aunts that tested too. Great aunt or cousin is the link they gave us.

12,2% (866,2‎ cM)
DNA shared
19
Segments shared
106,2‎ cM
Segment longest

Does that actually mean the joke is true and my aunt is my half aunt?

score -1 · Answer 1 · answered Dec 27 '19 at 00:29

-1

From The Shared cM Project 3.0 tool v4 for 866 cM the possible relationships do not include aunt.

However, they do include half aunt.

answered Dec 27 '19 at 00:29

PolyGeo

11,170
6
29
57

yes I did use that, so it tends to confirm my aunt is my "half aunt" – Emma Levillair Dec 28 '19 at 09:28

Does 866 cM shared suggest half aunt rather than aunt?

1 Answers1