“Ricki, we have another one.” AncestryDNA has spit out yet another half-sibling. I’m a curious hybrid, a geneticist and an “NPE” – “not parent expected” – individual. My few posts about it, such as here and here,

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“Ricki, we have another one.” AncestryDNA has spit out yet another half-sibling. I’m a curious hybrid, a geneticist and an “NPE” – “not parent expected” – individual. My few posts about it, such as here and here,
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
I’m uneasy counseling a patient for mutations in the BRCA1 or BRCA2 cancer susceptibility genes. Typically, she’ll have a “first degree relative” – usually a mother or sister – with a related cancer, or might
San Francisco — On a Thursday night in October 2007, I sat with hundreds of geneticists at the American Society of Human Genetics annual meeting in San Diego, so stunned that we ignored the free