4 Types of DNA Testing That Determine Genealogy


If you wish to determine the parentage of a child, you can opt to take one of several genealogy dna test choices. The following information can help you decide along these lines if you are interested in getting specific information. Different tests have different parameters. Therefore, you need to check the type of test out before you make an appointment.

1. X-DNA Tests

This autosomal DNA test type assessment allows you to find out what inheritance patterns apply to the X-chromosome. Only males inherit an X-chromosome from their birth mothers. Females, on the other hand, inherit X-recombined chromosomes from both of their parents. To identify the X-matches of relatives can assist you in finding out your shared ancestors and help you fill out your family trees. This way, you can limit your research to finding a link.

You can use this test to learn more about inheritance patterns and to create pedigree charts when finding out about parentage.

2. atDNA testing

This genealogy DNA test compares your autosomal DNA with everyone else’s DNA. This is done in the testing business’ at DNA database, thus giving you a listing of individuals to match. The relationships are based on the percentage of DNA that you share. Autosomal DNA testing can match you with the relatives of all of your ancestral lineage. You can use a pedigree chart to help you determine the matching.

Everyone inherits autosomal DNA directly from their parents. Therefore, DNA is passed down through random DNA parts from grandparents, great-grandparents, and so on. Therefore, when this type of test is used, you can be any gender or age.

Naturally, the matches for recent generations are the most precise. However, with that being said, you can still go back six generations using this type of testing result.

3. mtDNA testing

This testing procedure is also known as mitochondrial DNA testing. It compares an individual’s mtDNA with others who have already taken the test. Therefore, this test matches people who share the same or similar mtDNA. Everyone has mitochondrial DNA that comes from their mother and through her mother, and so on throughout these bloodlines. Therefore, anyone of any gender can take this type of test. Males cannot pass this DNA onto children. However, they still can take the test. This type of test can help you see if you have descended from the same female ancestor. That is the main purpose of the test. If you need further details, you may need to consider another type of DNA assessment.

4. Y-DNA testing

This test compares the male’s Y-chromosome markers with other males who have also taken the test. Therefore, males are matched up with others who share the same or similar Y-DNA. This test is used to find out the direct male or paternal line only, or the surname line. Therefore, only males who have inherited Y-DNA from their father through his father’s family can take this type of test.

This test is used to determine if a man descends from the same line as another man who has been tested.  However, it cannot tell you how, where, or when in your family tree you have struck a match.


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