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X-DNA is usually more recent than autosomal DNA

by Brit Nicholson | Jun 29, 2022 | Blog, DNA Science

New discoveries overturn the familiar adage that X-DNA is usually from a farther back ancestor than autosomal DNA As of today, you can test the new discoveries against the old adage by comparing any amount of X-DNA to the same amount of autosomal DNA. Two months ago I...

A New Option to Include X-DNA in Relationship Predictions

by Brit Nicholson | Apr 27, 2022 | Blog, DNA Science

Introducing the first ever relationship predictor to include X-DNA data in the percentage input box The tool can be found here with the new percentage box available as of 27 Apr. 2022. If you’d like some background on the principles of X-DNA, I recommend this...
Helping people when additional siblings have tested

Helping people when additional siblings have tested

by Brit Nicholson | Feb 3, 2022 | Blog, DNA Science

Coincidentally, while testing the best methods for using multiple siblings’ kits, a person I’m helping has a close match to a sibling pair. This is a practical application of helping people with advanced genetic genealogy methods. I was recently finishing...

Your Siblings Have DNA Kits, Too? Part 3. Empirical Data.

by Brit Nicholson | Jan 10, 2022 | Blog, DNA Science

Comparing kits to a known relative when multiple siblings have tested A year ago I wrote an article, Part 1, about the theoretical best way to use the kits of multiple siblings to help determine relationships of your DNA matches. More recently, in Part 2, I tested...
Your Siblings Have DNA Kits, Too? Part 2. Testing the Methods.

Your Siblings Have DNA Kits, Too? Part 2. Testing the Methods.

by Brit Nicholson | Dec 2, 2021 | Blog, DNA Science

A year ago I wrote an article about the best way, theoretically, to use DNA kits from multiple siblings. How does it hold up to testing? In Part 1 I described what you would need to do in order to use all of the information found in multiple siblings’ kits. It...
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Recent Posts

  • X-DNA is usually more recent than autosomal DNA
  • Double Cousin Relationship Predictions from Ped-sim
  • A New Option to Include X-DNA in Relationship Predictions

Recent Comments

  • Shanda Kerschner on New Feature: Relationship Predictions at GEDmatch
  • Brit Nicholson on Double Cousin Relationship Predictions from Ped-sim
  • Brit Nicholson on Code for an Algorithm to Find Your DNA Segments Based on MyHeritage DNA Matches
  • Julie Kelts on Code for an Algorithm to Find Your DNA Segments Based on MyHeritage DNA Matches
  • Jamie Cox on Double Cousin Relationship Predictions from Ped-sim

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