by Brit Nicholson | Jul 19, 2021 | Blog, DNA Science
That’s a common questions I see from people researching their DNA matches. Until now the only answer we could give was “because DNA is variable.” That’s a correct answer. But we could provide something more useful: A quantitative answer. When...
by Brit Nicholson | Apr 6, 2021 | Blog, DNA Science
Relationship predictions are now updated to include differences in maternal and paternal recombination rates as well as validation of ranges by peer-reviewed standard deviations The calculator can be found here. I’ve previously published exact averages and very...
by Brit Nicholson | Mar 3, 2021 | Blog, DNA Science
Alternate title/misleading answer: 23andMe counts FIR twice Scientists who aren’t familiar with genetic genealogy will be very confused by the above question. After all, 50% is the expected amount, or average, that two siblings share. People asking this question have...
by Brit Nicholson | Mar 2, 2021 | Blog, DNA Science
People often ask a question similar to this one: If my ethnicity report is showing 5% Iberian, how far back should I expect to find an ancestor of mine who was Iberian? There’s a mathematical way to estimate the answer to that question. I’ll discuss that...
by Brit Nicholson | Feb 24, 2021 | Blog, DNA Science
The only cousin statistics that acknowledge the differences in paternal and maternal relatives due to recombination rates. See the relationship probability calculator that’s based on this same model. I’ve written an article that shows the percentages of shared...
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