Questions people hope to answer with DNA testing are:
Where are my ancestors from?
Do I have any unknown relatives out there?
Am I related to ... those other ENGELs (or Schwartz or other family name)?
Three types of personal DNA tests
Y test for father's father's line
mtDNA for mother's mother's line
Autosomal DNA test for all your ancestors
Where to do an Autosomal DNA Test if you are Jewish?
Test at 23andme and then upload those results elsewhere, that gets you high level haplogroups and some health results
If you can afford it also test at Ancestry.com
If you can afford it also do Y testing of your male line(s) at Family Tree DNA. Start with the 37 marker STR test.
Jewish Y Haplogroups: J1c3, J2a Cohanim
R1a1 most Levites
E1a1 is frequent
Others: various J subgroups, T1, and E1b
Sample Y DNA results at 67 markers for a Jewish man
Not a single surname in common among these close matches
Mitochondria under a microscope
Near Eastern origin mtDNA Haplogroups:
K1a9 and N1b2
others are H variations, probably European
Your autosomal DNA results are about 700,00 lines of data in a spreadsheet
Ethnicity Estimates for half Galician half Polish Jewish Person
Ethnicity Estimates for half Galician half Polish Jewish Individual
MyHeritage.com estimate for the same person: left tested there, right uploaded
MyHeritage Matches for our Galician and Polish Jewish person
Enter the cMs and get probable relationships https://dnapainter.com/tools/sharedcmv4
Lara Diamond is collecting Ashkenazi data and her preliminary report is here: https://larasgenealogy.blogspot.com/2018/05/ashkenazic-shared-dna-survey-data-by.html
Close relationships are within the normal range but at the high end, the average is about 100-200 cM larger than the norm
Above, results in my family, see also this paper
Match to a maternal side Ashkenazi 3rd cousin
Comparison to a paternal side Norwegian 3rd cousin
Clustering tools often create one big blob for Ashkenazi Jews - this one used the range 90-250 to get past that
has not yet been useful
MyHeritage is the best place to work on Jewish DNA matches
Theory of Family Relativity for Steven and Stanley
Some of the items on the DNA match page for Steve and Stanley
The shared matches shows how they are related to each of you!
The MyHeritage Chromosome Browser lets you see a map of the DNA segments where you match.
Plus the segments which triangulate are outlined!
23andMe will also show how the shared matches are related
Do not be disheartened by lack of responses, some rarely log in
Aunt Shaindel is found!
Israel Pickholtz documents his extensive family DNA project
He blogs at allmyforeparents.blogspot.com/
There is lots more information on my blog about Jewish DNA for example, read