I wrote about a fascinating case of a woman who took an AncestryDNA test and found someone else's DNA inside her
This story is *fascinating*. And just owns this beat right now.
Thanks to for covering this story and for including my thoughts on umbilical cord blood donation and its far-reaching implications for #geneticgenealogy.
A Woman Found Her Cord-Blood Donor From a DNA Test - The Atlantic I would have never guessed that spit samples include white blood cells or that the extracted sample would be purely from one genome.
Cells in saliva are a variable mix of oral mucosa cells (presumably host in stem cell transplant recipient) and white blood cells. Hence results may reflect the donor rather than the recipient.