06/11/2025 - The BAM file is the complete sequence alignment generated by your Big Y test — it contains the raw reads of your Y chromosome. This file is required by third-party services such as YFull for advanced analysis, tree placement and deeper haplogroup discovery. In this tutorial, we’ll walk you through how to request your BAM file on FamilyTreeDNA (FTDNA), generate the download link, and upload it to YFull.
What You Need Before You Start
An FTDNA account with a completed Big Y or Big Y-700 test
A valid email address linked to your kit (you’ll receive the BAM link there)
(Optional) A YFull account ready to receive your BAM upload
Step 1 — Sign In to FamilyTreeDNA
Go to https://www.familytreedna.com/sign-in and log in using the same email you used whe...See more
16/06/2025 - Vahaduo is one of the most powerful online tools to explore your deep ancestry using G25 coordinates — a set of principal components developed by Davidski from the Eurogenes project. In this tutorial, we’ll walk you through how to use Vahaduo to model your ancestry in just a few simple steps.
What You Need Before You Start
Your G25 coordinates (target)
A list of reference samples (sources) in G25 format
Access to Vahaduo
Step 1: Open the Right Vahaduo Tool
Go to https://vahaduo.github.io/vahaduo/.
Step 2: Paste Your Target Coordinates
Here are two examples you can use as target individuals:
Copy to clipboard
individual1_scaled,0.119514,0.111708,0.05242,0.025194,0.026466,0.007251,-0.020446,-0.024461,0.008385,0.006743,-0.000812,0.002398,-0.005798,-0.0035...See more
22/05/2025 - If you're interested in exploring your ancient or modern ancestry using G25 coordinates (also called Global25), this guide will show you exactly how to use them with online calculators even if you don't yet have your real coordinates.
You can either:
Order real G25 coordinates (recommended for accuracy) via G25 Requests
Use simulated coordinates as a workaround, explained in my other guide
You may also want to check:
What Is Raw DNA Data, How to Download It, and Where to Upload It for More Insights
Step 1: Choose a G25 Admixture Calculator
Visit one of the compatible G25 calculators : https://www.exploreyourdna.com/calculators.aspx
For this tutorial, we’ll use the following one which is a calculator that contains modern references :
Modern World Regions ...See more
03/05/2025 - If you don’t have G25 coordinates yet, don’t worry! Here’s a step-by-step guide to generating simulated coordinates using your Gedmatch account, so you can use them with the calculators and tools on our website.
Step 1: Log in to Gedmatch
Go to Gedmatch and log in to your account.
Identify the Kit Number you wish to use and copy it.
Choose Free Tools > Admixture (heritage) in the top Menu
Step 2: Access the Eurogenes K36 Calculator
Select the Eurogenes project.
Choose Admixture Proportions (with Link to Oracle) and click Continue.
Paste your Kit Number in the field labeled “Enter your Kit Number”.
In the project menu, select K36 Eurogenes Project and click Continue.
Step 3: Obtain Your ...See more
