Several years ago, I helped an adoptee I called “Gordon” identify his biological father. (Gordon is a pseudonym, as…
We can analyze complex pedigrees with more sophisticated methods.
Oops! I’ve made an error in some of the analyses for this post. I will update it as soon as…
What can you do when you find out your parents were closely related?
Scroll down for links to other posts in this series. The DNA Painter Lookup Tool We are learning how to…
In “Escape from the Overlap Zone“, I wrote about a way to distinguish between relationships for which the shared amount…
UPDATE: Additional simulations by Andrew Millard using different recombination rates for men and women indicate that half-siblings and aunts/uncles/nieces/nephews can…
Have you ever looked at a particularly large shared segment with a distant cousin and wondered “What are the odds?” We wouldn’t…
The one thing we genealogists probably want most from our autosomal DNA matches is something they can’t give us: an…