O'Dair

  • 15 members

About us

Determine family history connections world wide and surname geographic location of origin. DNA testing can confirm recent faimily histories, as well as ancient historical beginnings. Why not let let DNA testing for genealogy purposes take you and your family on a Family History Trip of a Life Time, without even leaving home! The goal of the project is the following:

* Prove or disprove theories regarding ancestors
* Solve brick walls in our research
* Determine a location for further research
* Validate existing research * Investigating Ancient Ancestry

Surname project pricing for tests is available at a reduced rate rather than private test costs.


How many to test? 12, 37, 67 markers?
Deep clade Haplogroup tests and what they accomplish
Familytreedna DNA test kit contents
Familytreedna Privacy and Legal Statement

Triangulation
- A method of determining the
Ancestral Haplotype from the haplotype data of known direct line descendants. In Genetic Genealogy, the process of determining the Y chromosome DNA Ancestral Haplotype of a male ancestor by looking at the allele values of the DYS markers in the haplotypes of the tested individuals in a surname project who descend from that ancestor by focusing specifically on the direct paternal line descendants of two or more known and different sons of the common male ancestor. Unless there is an exact match at all alleles at all DYS markers in the haplotypes of the two different direct male lines of descendants, at least three haplotypes are required to triangulate and deduce the ancestral allele for each marker. A typical descendant chart looks like a triangle with the ancestor at the apex. This is why we need multiple testers from these lines to make this determination.

Genealogical DNA Testing Myths


Myth #1: Do we need to dig up our ancestors to get their DNA? No! Their DNA is contained within your DNA, to some extent. For males, the Y-chromosome is passed from father to son on down through the generations. Males and females also receive mitochondrial DNA (mtDNA) from their mothers, which also contains the DNA of their direct maternal line. However, only females will pass mtDNA on to their children.

Myth #2: Is the DNA collected by a blood test? No. Commercial DNA testing companies utilize saliva/buccal cell sampling via swabs and various other collection containers.

Myth #3: Can an insurance company or court subpoena my DNA test to use against me for insurance or legal purposes? No, and there’s several reasons why: - For a court to obtain your DNA, they may request your medical records, to access the labs where you have taken blood tests. Or, they would order you to take a DNA test through a specified facility. - Your genealogical DNA test is not in a "controlled chain of custody" meaning that because it is sent through the mail, it is handled by people out of the control of testing company and lab. - The types of DNA used for genetic genealogical testing cannot be used to identify you. Why? If you are a male, your brother, your father, your grandfather, all have the same Y-chromosome as you and an individual cannot be singularly identified using the Y-chromosome. A well-known example of this is that Thomas Jefferson cannot be ascertained as the father of Sally Hemmings’ children since other Jefferson males share the same Y-chromosome. The same also applies to mitochondrial DNA; you receive it from your mother, and all of your siblings have it, so it cannot be used to individually identify you.

Myth #4: Do my DNA results reveal any medical conditions? The section of the Y-chromosome used for genealogical DNA testing is non-coding DNA, in that it does not recombine (mix) or have any known uses other than to fill the spaces in between your genes. However, because this DNA does not mix, and it changes very slowly (mutates) it’s beneficial for use in genealogical applications.