Friday 29 Y for Y DNA.

Y DNA is carried by the males and is therefore passed, father to son.  The Y chromosome is one of the two sex chromosomes; the other is the X chromosome. Males have both the X and Y chromosomes, women have two X chromosomes.  Blaine T Bettinger has a book ‘The Family Tree Guide to DNA Testing and Genetic Genealogy,’ that explains this a whole lot better than I can. I’m still learning the DNA side of genealogy


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