combined effects of shared sibling background and experiences, including genetics and family environments. The UK Biobank … allows us to specifically control for sibling and parental genetics (polygenic scores, PGS) in order to gauge their relative …%) contributions of molecular genetics to the similarity of sibling outcomes, suggesting a large amount of the observed similarity in …

inheritance, there is a substantial role for environment and a much smaller role for genetics. We also examine the role played by …