DNA Testing

Sections Reprinted From: http://web.utk.edu/~corn/parkerdna/park2.htm

What do I learn about my genealogy from a DNA test?

The value of DNA testing for genealogy lies in the comparison of DNA from different individuals. As an example, if you are a Parker, the DNA from your line will be compared with the DNA from other PARKERs in our project (and other surnames as well). When a DNA match is found to another PARKER we have a high degree of confidence that the two lines are descended from a common ancestor. Each individual may have information that the other did not possess. You may match someone who has their ancestry documented several generations further back than you. The DNA test will not tell you who your ancestor was, or when or where he lived.

Who does the testing?DNA Certificate

We have chosen Family Tree DNA (FTDNA) as our testing company.
The laboratory that performs the test is at the University of Arizona.

How much does it cost?

We are getting a discount for a group project, $99 for the 12 marker test; $148 for the 25 marker test, $189 for the 37 marker test, $269 for the 59 marker test.

How do I choose which test to use?

The greater the number of markers, the more definitive the test becomes. As more people are tested, it becomes more likely that DNA matches based on a small number of markers will be found. Many of these matches may be to individuals with other surnames. While these matches may be very useful in special circumstances, there are now many cases of a perfect match on the 12 marker test, that match only 20 of 25 markers when the test was expanded to 25 markers. Unless other evidence can be found, it is very unlikely that two individuals who match 20/25 are related. We are encouraging use of the 25 or 37 marker test. Once a sample is submitted, you can order upgrades or addtional tests without submitting another sample.

How do I get a DNA sample?

The kit from FTDNA contains a swab that you use to wipe the inside of the cheek. It is less painful than brushing your teeth.
Go to this site, DorseyDNA to see photos of Bob Dorsey collecting his DNA for the Dorsey surname project.

Who can participate in this project?

The DNA sample must be from a male whose surname, as an example, is PARKER.


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