Drew has musically talented grandparents and great-grandparents. in addition to having musical genes, drew is raised in a musically enriched environment. he develops into a talented composer. which branch of psychology would explain this interaction between genetics and environment?

The branch of psychology that explains the interaction between genetics and environment on our behavior is Behavioral Psychology. This interaction is most commonly referred to as Nature vs Nurture. In this case, Drew's behavior is influenced by both his genetic make up and his environmental details.