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  • Tested wrong DNA

    I recently purchased a Family Finder test for both my wife and I. When the tests were completed it was obvious that the same DNA was used for both tests. The two kits showed a parent/child relationship and all matches and ethnic makeup were identical. I have contacted FTDNA about this several times in the last three weeks and they say they are working on resolving it. FTDNA support personnel have been very nice but the responsiveness is slow.

    I am assuming that the DNA tested was mine but I am not 100% positive based on the results. Is it possible to determine gender by looking at the autosomal data file? It is concerning to me that this basic of a process error would occur. Does anyone else have any experience with this kind of thing happening?

  • #2
    Originally posted by Shanndd View Post
    I recently purchased a Family Finder test for both my wife and I. When the tests were completed it was obvious that the same DNA was used for both tests. The two kits showed a parent/child relationship and all matches and ethnic makeup were identical. I have contacted FTDNA about this several times in the last three weeks and they say they are working on resolving it. FTDNA support personnel have been very nice but the responsiveness is slow.

    I am assuming that the DNA tested was mine but I am not 100% positive based on the results. Is it possible to determine gender by looking at the autosomal data file? It is concerning to me that this basic of a process error would occur. Does anyone else have any experience with this kind of thing happening?
    The kit comes with two swabs. I assume you purchased two kits correct? One for you and one for your wife. Did you do the DNA tests together? If you did that could explain it if you got the vials mixed up and one of you provided DNA for both kits.

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    • #3
      Originally posted by Shanndd View Post
      I recently purchased a Family Finder test for both my wife and I. When the tests were completed it was obvious that the same DNA was used for both tests. The two kits showed a parent/child relationship and all matches and ethnic makeup were identical. I have contacted FTDNA about this several times in the last three weeks and they say they are working on resolving it. FTDNA support personnel have been very nice but the responsiveness is slow.

      I am assuming that the DNA tested was mine but I am not 100% positive based on the results. Is it possible to determine gender by looking at the autosomal data file? It is concerning to me that this basic of a process error would occur. Does anyone else have any experience with this kind of thing happening?
      download the X Raw data file (build 36 or 37, not the autosomal or concatenated ones)

      Run file through the following utility


      if kit is for male it should list something like 95%+ homozygous(males only have 1 X, test results list values as double value in Raw Data)
      ie)Chr X: 99.848 % (17770 of 17797 SNPs) are homozygous, 210 No-Calls, 13 heterozygous SNPs treated as homozygous

      Females X will show less

      what percentage of homozygous SNP is listed?

      Comment


      • #4
        Originally posted by mattn View Post
        The kit comes with two swabs. I assume you purchased two kits correct? One for you and one for your wife. Did you do the DNA tests together? If you did that could explain it if you got the vials mixed up and one of you provided DNA for both kits.
        We each had a kit and were careful to keep them separated. We did not test at the same time. My kit was sealed at the time my wife did her test. But, I suppose it's not impossible that somehow things could have gotten mixed up.

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        • #5
          Originally posted by prairielad View Post
          download the X Raw data file (build 36 or 37, not the autosomal or concatenated ones)

          Run file through the following utility


          if kit is for male it should list something like 95%+ homozygous(males only have 1 X, test results list values as double value in Raw Data)
          ie)Chr X: 99.848 % (17770 of 17797 SNPs) are homozygous, 210 No-Calls, 13 heterozygous SNPs treated as homozygous

          Females X will show less

          what percentage of homozygous SNP is listed?
          Here's the results I got:
          Chr X: 99.837 % (17783 of 17812 SNPs) are homozygous, 533 No-Calls, 10 heterozygous SNPs treated as homozygous

          It appears that it was my DNA tested. Thanks much for the help.

          Comment

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