by DNA-Sci | Aug 5, 2021 | Blog, DNA Science
We can now easily differentiate between 3/4 siblings and full-siblings over 94% of the time Three-quarter siblings have been confounding genetic genealogists for years. The problem is that their shared DNA overlaps significantly with other sibling types. And, while...
by DNA-Sci | Jul 19, 2021 | Blog, DNA Science
That’s a common question 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 DNA-Sci | Apr 6, 2021 | Blog, DNA Science
Relationship predictions are now available showing differences in maternal and paternal relationships, in-group differences, and accurate predictions for 23andMe data Updates: You can now get much better predictions by entering the # of segments along with total cMs!...
by DNA-Sci | Mar 12, 2021 | Blog, DNA Science
You already know that you get 25% DNA, on average, from a particular grandparent. But we can do better than that. Remember to use the most accurate relationship predictor to find out how you might be related to your DNA matches. Suppose that you and some friends want...
by DNA-Sci | 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. AncestryDNA doesn’t report the...
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