But as you match 12cM with A it's above their criteria and hence you match A and your parents both don't.Īs I said these are IBS in most cases anyway and you don't loose much by ignoring them. Your mother and father aren't recognized as a match to A as 6cM of total shared DNA is too short for their minimum criteria. You might even have 12 segments of 1cM with that person and again you received 6 of those little segments from your father and 6 from your mothers. Women, on the other hand, have a sex chromosome pairing of XX, inheriting one X chromosome from each parent. MaMy husband done a DNA test along with our daughter in hope of maybe finding something out about his father that he’s mother will not say anything about him and as he would now be in his 80s may not even be alive, but still he’s was hoping that maybe he could find a family member. Press question mark to learn the rest of the keyboard shortcuts. The sex chromosome pairing for a man is XY, meaning all you fellas out there inherited one X from your mother and one Y from your father. I’ve literally gone they all of them and they all seem to be on my mothers side. Now I think (hopefully others correct me if I'm wrong) that some DNA services use total amount of DNA shared as a criteria for a match. Unlike the 22 autosomes, X and Y chromosomes are NOT the same size. So your parents had most likely both an ancestor that came from the same small village or close ethnic group and hence both have a small part of DNA from there. You have received 6cM of that match to A from your father and another 6cM of matching DNA from your mother's side.ĦcM is very small and most likely IBS or if IBD it has happened a long time ago.
You match to person A for 12cM but A don't match your parents (as per Ancestry and the other DNA services.
It's relatively common what you experience.
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