YDNA Quick Reference Guide
Y chromosome DNA (YDNA) carries with it an indestructible record of your direct paternal line. This guide covers the basics of yDNA testing, and how to harness its power in paternal line research to further your genealogical goals.
I am having issues accessing the material. How do I log in to my account please? The rating above does not reflect a material review at this time.
Finding An Ancestor Using Your DNA Quick Reference Guide
Autosomal is easy to read