Louis Kessler’s Behold Blog The Behold User Forum
Search Entries, Comments and Posts
72.
The Life and Death of a DNA Segment - Blog comment by lkessler - 21 Aug 2019
... by the company doesn't seem relevant to me because the filtering is only done in the DNA tester's results.
73.
The Life and Death of a DNA Segment - Blog entry by lkessler - 19 Aug 2019
... 15 cM segment. Part of this is due to the incorrect thinking that a segment of your DNA has been around forever and has been passed down from some ancient ancient ancestor to you and to just about everyone else. Since there is only a 1/2 chance that each generation gets the segment from the right parent, the argument is that it gets offset maybe by the more than 2 ...
74.
50 Years, Travelling Salesman, Python, 6 Hours - Blog entry by lkessler - 7 Aug 2019
... to program language to use for smaller tasks such as analysis of raw data files from DNA tests, or even analysis of the huge 100 GB BAM files from my Whole Genome Sequencing test. Over the last year or so, I had been looking with interest at the language Python (which is not named after the snake but is named after Monty Python’s Flying Circus). Python has been moving ...
75.
Combine Kits into One Superkit on GEDmatch Genesis - Blog comment by lkessler - 5 Aug 2019
Cdxp: Yes, the parent company of Family Tree DNA is Gene by Gene, and their testing facility in Houston does both Family Tree DNA and MyHeritage. Gene by Gene changed recently to a new chip that allows for some custom selection of SNPs. Family Tree DNA and ...
76.
Combine Kits into One Superkit on GEDmatch Genesis - Blog comment by cdxp - 5 Aug 2019
Are FTDNA and Myheritage using the same testing facility? Some recent advertising and your results suggest a relationship of some kind. I've just purchased DNA tests from both to try and get more coverage than i get from LDNA ...
77.
My Whole Genome Sequencing. The VCF File - Blog comment by lkessler - 13 Jul 2019
Hi Jarett. My interest is more in the genealogical aspects of DNA testing I'm currently working hard to finish and release version 3 of DMT. www.doublematchtriangulator.com - I am not a genomics expert, but I'm learning.
78.
Determining VCF Accuracy - Blog entry by lkessler - 13 May 2019
... need this initially set this up. Wilhelm HO has good set of them included with his DNA Kit Studio. The positions of variants in your gVCF file should be marked as no-calls. Many of these variants are false, but we don’t want them to break a match. The positions of variants in your filtered VCF should be marked as having that variant. This will overwrite most of ...
79.
Creating a Raw Data File from a WGS BAM file - Blog entry by lkessler - 12 May 2019
... last post if I could create a raw data file that could be uploaded to to GEDmatch or DNA testing company from my Whole Genome Sequencing (WGS) results. I was trying to use one of the Variant Call Format (VCF) files. Those only include where you vary from the human reference. So logically you would think that all the locations not listed must be human reference values. But ...
80.
WGS – The Raw VCF file and the gVCF file - Blog entry by lkessler - 7 May 2019
... everything that is needed to generate a raw data file that can be uploaded to various DNA sites for people matching. The VCF file contains SNPs that vary from the standard human reference genome. The thinking is then that any SNPs needed for the raw data file (to match with the SNPs that are tested by the chips used by Ancestry, 23andMe, Family Tree
Prev 61-70
The Life and Death of a DNA Segment - Blog comment by jonathanb - 21 Aug 2019