Genes Make the Grade

How well students perform on end-of-schooling exams is highly heritable, researchers in the UK report in PLOS One this week. Drawing on a cohort of more than 11,000 16-year-old twins, both identical and fraternal, researchers led by King's College London's Robert Plomin examined how the students performed on the General Certificate of Secondary Education exams in English, mathematics, and science, as well as on other, elective topics.

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