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A genealogical DNA test is a DNA-based genetic test used in genetic genealogy that looks at specific locations of a person's genome in order to find or verify ancestral genealogical relationships, or (with lower reliability) to estimate the ethnic mixture of an individual.
It was founded by a group of surname DNA project administrators in 2005 to promote DNA testing for genealogy. It advocates the use of genetics in genealogical research, provides educational resources for genealogists interested in DNA testing, and facilitates networking among genetic genealogists.
Schematic illustration of maternal (mtDNA) gene-flow in and out of Beringia, from 25,000 years ago to present. The genetic history of the Indigenous peoples of the Americas is divided into two distinct periods: the initial peopling of the Americas from about 20,000 to 14,000 years ago (20–14 kya), [1] and European contact, after about 500 years ago.
GenoChip is specifically designed for anthropological testing and includes SNPs from autosomal DNA, X-chromosome DNA, Y-chromosome DNA and mitochondrial DNA (mtDNA). The design of the new chip was a collaborative effort between Wells of National Geographic, Eran Elhaik of Johns Hopkins , Family Tree DNA , and Illumina .
Genetic genealogy is the use of genealogical DNA tests, i.e., DNA profiling and DNA testing, in combination with traditional genealogical methods, to infer genetic relationships between individuals. This application of genetics came to be used by family historians in the 21st century, as DNA tests became affordable.
By 2022, Othram says, its scientists developed a DNA extract from the provided evidence and used forensic-grade genome sequencing to build a comprehensive DNA profile for the Jane Doe.