The Big Y is a Y-chromosome direct paternal line test. We have designed it to explore deep ancestral links on our common paternal tree. This test examines thousands of known branch markers as well as millions of places where there may be new branch markers.
The Big Y test is intended for users with an interest in advancing science. It may also be of great interest to genealogy researchers of a specific lineage. However, it is not a test for matching you to one or more men with the same surname in the way that our other Y-STR tests do, such as Y-37, Y-67, and Y-111.
Accessing Big Y Results & Matches
You can access Big Y Results & Matches from your dashboard or from your navigation bar.
To access from your dashboard:
- Sign in to your kit.
- On your dashboard, locate the Y-DNA Results & Tools widget.
- On the Y-DNA Results & Tools widget, in the Big Y section, click the Results button or the Big Y Matches button.
To access from your navigation bar:
- Sign in to your kit.
- On the navigation bar at the top of the page, go to Results & Tools > Big Y > Results or Results & Tools > Big Y > Matches.
Big Y Results Overview
Big Y Results contains the following:
- Named Variants - Displays your single nucleotide polymorphisms (SNPs) that are on the list of ~260,000 known SNPs against which Big Y data is compared.
- Private Variants - Displays your SNP markers that are not on the list of ~70,000 known SNPs.
- Matching - Displays your Big Y Matches and corresponding information.
- Export (CSV) - Click to download all of your Big Y SNP information to a .CSV file.
- Download VCF - Click to download a Variant Call File with all the variant calls from the Big Y.
- Download Raw Data - Click to download a .ZIP file of your results.