Genetic genealogy
Genetic Genealogy
Genetic genealogy (pronunciation: /dʒɪˈnɛtɪk dʒiːˈnælədʒi/) is the use of DNA testing in combination with traditional genealogy and traditional genealogical and historical records to infer relationships between individuals.
Etymology
The term "genetic genealogy" is derived from the words "genetic", which comes from the Greek word "genetikos" meaning "genitive" and "genealogy" which comes from the Greek words "genea" meaning "generation" and "logos" meaning "knowledge".
Overview
Genetic genealogy involves the use of genealogical DNA testing to determine the level and type of the genetic relationship between individuals. This process combines the principles of genetics and genealogy to provide a more comprehensive understanding of family history and ancestry.
Types of Tests
There are three primary types of genealogical DNA tests: Autosomal DNA tests (atDNA), Y-DNA tests, and Mitochondrial DNA tests (mtDNA). Each of these tests provides different information and can be used for different purposes in genetic genealogy.
Related Terms
- Autosomal DNA: This is the DNA that is inherited from both parents and includes all chromosomes except the sex chromosomes.
- Y-DNA: This is the DNA that is passed down from father to son. It is used in genetic genealogy to trace direct paternal lines.
- Mitochondrial DNA: This is the DNA that is passed down from mother to all her children but only daughters can pass it on. It is used in genetic genealogy to trace direct maternal lines.
- Haplogroup: A haplogroup is a genetic population group of people who share a common ancestor on the patrilineal or matrilineal line.
External links
- Medical encyclopedia article on Genetic genealogy
- Wikipedia's article - Genetic genealogy
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