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Genetic Linkage

DNA Testing Kits as Holiday Gifts Can Bring Surprises

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Lately people have been sending me their direct-to-consumer (DTC) genetic testing results for help with interpretation. Although companies like 23andMe and ancestry.com do a pretty decent job of explaining findings, people not familiar with genetics might be confused. And they can be so upset, or scared of the science, that they forget that human behavior lies behind some disturbing information.

So it was that Lisa G., not her real name, emailed me recently, asking about the likelihood that a stranger claiming to be her half-brother really was. He’d gotten the idea from a 23andMe test. So as ads for DTC DNA tests ramp up as the holidays approach, I thought I’d relate this simple example of the feelings that findings can evoke. Read More 
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