Has Relationship Prediction Drastically Improved?

A DNA tester has a few different options to see the possible relationships for their matches, including at the testing sites themselves. A new one has functionality like no other. I used to not be a fan of relationship prediction for genetic genealogy, wondering why...
A Banner Year for DNA-SCI.com

A Banner Year for DNA-SCI.com

It will be hard to capture all of the discoveries that have been made and posted at this site in the past twelve months. A year ago I was using a very basic natural model of genetic inheritance. I had been publishing averages and ranges of shared DNA for relationships...
Mathematical Formulas for Genetic Genealogy

Mathematical Formulas for Genetic Genealogy

This post won’t be everyone’s cup of tea. But I’ve used these formulas countless times in programming in order to automate processes, which saves me a lot of time and work and prevents errors. Ethnicity The first time I ever wrote a formula for...

Small Segments: Are We Asking the Wrong Question?

Small segments affect most of our matches, whether we think we’re using them or not. I don’t know that I would call it a debate, but the discussion about low centiMorgan (cM) DNA segments continues with fervor. And I almost never hear any arguments from the...