DNA Testing: In Our Blood
"Newsweek" quotes Professor Hank Greely in an article about genetic genealogy:
Go back 10 generations, and that's 1,024 ancestors, says Stanford bioethicist Hank Greely. "Your Y might be from Japan, your mitochondrial DNA from Mexico and all other 1,022 ancestors from Sweden." Greely worries that customers may not fully understand what they're getting.