About us
Anyone wishing to see a deeper result within the R-Z253 Haplogroup, can do a Big Y test. This will discover all your SNPs that are presently known, and also a group of unnamed variants, often called singletons. These singletons are the most valuable, as amongst them will be the variants that define your most recent paternal lineage. When two distant paternal cousins, or a closish Y67 match, both do a Big Y, it is likely that most of the SNPs and a lot of the unnamed variants will match, so forming new branches on the Y tree.