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General => Ancestral Family Tree DNA Testing => Topic started by: PixieAnna on Tuesday 03 March 20 17:52 GMT (UK)
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I'm getting in a right kerfuffle with this! Please excuse this post if I haven't explained my query very well - I haven't got it all straight in my head just yet!!
The closest match I've got from Gedmatch is 61.4cM over 24.5 segments giving me highest probabilities of 30.94% of matching with a half3C, 3C1R, half2C2R, or 2C3R. Every other result is below 43cMs.
Am I wrong in thinking that's a low cM count or is it reasonable for matching purposes?
I'm also having trouble working out where the half-ancestor occurs - would it be a half-sibling of our common ancestor?
Any help gratefully received ???
Thanks
Pixie
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61cM is a good sized match although I am surprised it is over 24.5 segments? Is there something wrong there for example how do you get half a segment ?
A half 2C2R means that instead of sharing a Great Grandparent couple in common you only share one of them i.e either the Great Grandfather or Great Grandmother not both. (Possibly a case of more than one marriage for one or both or an illegitimate birth).
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61cM is a good sized match although I am surprised it id over 24.5 segments? Is there something wrong there for example how do you get half a segment ?
I may be wrong but I think that 24.5 refers to the largest shared segment not the number of shared segments.
Gadget
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I had the same thought Gadget ;D
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Thank you all for your replies.
Yes, I made a mistake with the segments - 24.5 is the largest segment of 4 shared segments giving the 61.4cM match.
Thank you for explaining the half-cousin relationship, Davidft.
Can anyone tell me why the Generational column on Gedmatch is in percentages, please?
Thanks, Pixie