Students at Soldan International High School have swabbed their cheeks to participate in National Geographic's Genographic Project. On her blog, Sandra Porter wonders how the students’ teachers will respond to unexpected results — ones that the kid’s parents might want to keep quiet. "Any science instructor who's had to find a really creative way to explain why a student has the 'wrong blood type' based on their parentage, will appreciate that analyzing Y chromosomes has potential for trouble," she blogs.