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How to classify relationship in Family Finder matches

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  • #16
    thanks prairielad

    I have ordered the family finder test , but the maternal side of the family is of less interest to me than the paternal side. I know nothing , not even a surname or country of origin about my paternal side.


    • #17
      Originally posted by owain View Post
      this might seem like a stupid observation , but I have only done the YDNA test , so how would it test my maternal side?
      If it is stupid then please tell me why - I will not be offended in any way as I really do not understand even the basics of genetics.Thanks.
      With all due respect, if you're going to spend good money on DNA testing for genealogy purposes, it would be wise to try to read up on the basics of how DNA is inherited. Others have already given you links to pages which are useful in understanding results. Knowing how DNA is inherited will be very helpful in looking at your matches and being able to understand how they may relate to you.

      Otherwise, you're going to continually have questions, some or most of which we can answer. It's not as difficult as you're making it out to be. The basic knowledge is something that most high schools these days probably teach in basic biology classes.

      To answer your question ("I have only done the YDNA test , so how would it [autosomal] test my maternal side?"), the 22 pairs of autosomal chromosomes come from both parents. One of the chromosome 1 pair comes from the father and the other one of the pair comes from the mother. One of the chromosome 2 pair comes from the father and the other one of the pair comes from the mother. And so on, for each of the 22 pairs of chromosomes.

      So, half your autosomal DNA is from your father and half from your mother, 50% from each. The 50% you got from your father is a recombined version of half the DNA he got from his parents and the 50% you got from your mother is a recombined version of half the DNA she got from her parents. This means that you got roughly 25%, give or take a few percent, of your autosomal DNA from each grandparent. You can also estimate that roughly 12.5%, give or take a bit, of your autosomal DNA came from each of your 8 great-grandparents.


      • #18
        thanks prairielad

        with equal due respect , I have spent good money on DNA testing to get results. When I pay good money to go to the Dentist with toothache, I don't normally get a convoluted medical report before being told that I now have the basic scientific knowledge to drill my own teeth! In my professional life , all of my work is highly specialised and very technical. On the occasions that I have had to train someone, I have not been able to presume any knowledge and I have been forced to deconstruct what I do to the most basic level to progress. People have been kind enough to suggest various links to me to help explain some of the intricacies. However and paradoxically, these links are still both too complex and too vague to assist. I have no real interest in theoretical genetics ; I only have an interest in tracing immediate and historical family. As I have said before and as lots of other people on this forum have re-iterated , the basic requirement from FTDNA is a standardised user guide supplied by FTDNA.

        To most of FTDNA customers the genetics is a means to an end and not an end in itself.