Yes, and identical twins raised apart show extremely similar academic achievement, far more similar than non-identical siblings raised in the same household. Th

Yes, and identical twins raised apart show extremely similar academic achievement, far more similar than non-identical siblings raised in the same household. This strongly indicates that academic achievement is highly explained by genes but that recombination [1] causes enough scrambling to result in large variance among non-identical siblings. [1] https://en.wikipedia.org/wiki/Genetic_recombination https://en.wikipedia.org/wiki/Genetic_recombination