Archived Blog Posts

Medieval Irish Genealogies and Y-DNA

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Over the millennia, in a continuous process, Irish clans gave rise to subsequent clans. These descendant clans adopted specific surnames from about 900 A.D. onwards. Thus, the post-surname clans that descended from a specific pre-surname clan...

Why females can't take a Y-DNA test

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A Y-DNA test, also known as a patrilineal test, looks at the Y chromosome.

The Y chromosome is one of two sex chromosomes, X and Y. Sex chromosomes carry the genetic code that makes each of us genetically female or male.

Typically, people inherit two

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Do more Y-DNA STR markers improve the quality of matches’ information?

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You should test more Y-chromosome DNA short tandem repeat (STR) markers when you wish to compare additional markers against others with similar results. They will refine your matches for genealogical purposes. It does not increase the number of...

How many generations does a Y-chromosome DNA test trace?

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Y-chromosome DNA (Y-DNA) tests trace both recent and distant generations. The number of generations traced by a Y-chromosome DNA test depends on the type of test taken, short tandem repeat (STR) or single nucleotide polymorphism (SNP). STR such as...

Want to live 100+ years?

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Want to live 100+ years? You may need unusually good DNA repair. Click here to read more in Big Think.

 

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