- Identification of a DNA signature for those who share the same surname
or a variant.
 Suggested test: Y-DNA
- Confirmation or rejection of paper trail genealogical descendancy.
Suggested test: Y-DNA and mtDNA
- Help to overcome genealogical deadends (a brickwall).
Suggested test: Y-DNA or mtDNA
- Help to find one's family by comparing DNA signatures (for example:
adoption).
Suggested test: Y-DNA or mtDNA
- Discover descendants of a common ancestor who had been separated for
a long time (e.g. Europe and America).
Suggested test: Y-DNA (for men)
Suggested test: mtDNA (for men and women)
- Confirm or reject hypotheses regarding your family history: Do we
have Amerindian ancestors? African or Asian ones ?
Suggested test: Y-DNA (patrilineage) with
determination of the Y haplogroup.
Suggested test: mtDNA (matrilineage) with
determination of the mt haplogroup.
Suggested test: DNA-print or Biogeographic
Genetical genealogy (GG) might assist you to complete your genealogy based upon written records. It does not replace
it. GG will not identify specific individuals. It can at most identify classes of individuals sharing similar DNA
signatures who usually will be related to a common ancestor.
Principle #1: Genetics can help confirm or reject hypotheses based upon archives (paper trail).
Principle #2: Genetics can suggest new research directions.
*) Recent genealogy is concerned with our ancestors back to the period when surnames or family names were required.
This period is relatively recent. It is indeed uncommon that a genealogy will go back further than the 13th century.
However, there are always exceptions.
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