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Clan MacNab
DNA matching can make connections between Clan members who might not otherwise know they could be related.
The Y-Chromosome is carried only by men who inherit it from their fathers. As surnames in Europe are typically patrilineal in descent the Y-Chromosome can be used to identify men who share a common ancestor. As women do not carry a Y-Chromosome, females who wish to participate require a male family member to participate who bears one of the project surnames.
The DNA test itself involves a simple swab on the inside of the cheek. There are two levels of test for genealogical research. Researchers recommend you purchase the "37 marker Y-DNA test" as the minimum for surname research which may well identify distant relatives within Family Tree DNA's extensive database.
Y-DNA37 : This is a male specific test. Results identify the ethnic and geographic origin of the paternal line.
Y-DNA111: This is the highest level of test available