It is not nature or nurture. Nor is it nature and nurture. . . . Life emerges only from the interaction between the two: There are no genetic factors that can be studied independently of the environment, and there are no environmental factors that function independently of the genome. Phenotype emerges only from the interaction of gene and environment.
http://journals.sagepub.com/doi/pdf/10.1177/0022022116680481
http://www.dejongepsychiater.nl/onderzoek/674-nature-nurture-tweelingstudies
