Discussing commercial DNA databases (such as Ancestry or 23andMe, for example) in her genetics and evolution units "is not something I spend a lot of time on, but as we do [the units], students will ask about [the DNA databases],” says Lisa McAlpine, who teaches Biology I and Biology II/AP at Blythewood High School in Blythewood, South Carolina. "This year, it's come up two or three times in every class.”
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