Slate noted an example that a child could derive 22 percent of genome from the mother's mom, 28 percent from the mother's father, 23 percent from the dad's mom and 27 percent from the dad's father.
"Mansel’s students started taking tests just three weeks into the 2014–15 school year," Slate noted. "They began with a state-required early childhood exam in August, which covered everything from basic math to letter identification. Mansel estimates that it took between four and five weeks for the teachers to test all 58 kindergarten students — and that was with the help of the prekindergarten team. The test requires an adult to sit individually with each student, reading questions and asking them to perform various tasks. The test is 11 pages long and “it’s very time-consuming."