In "Middlesex" by Jeffrey Eugenides, the notion that parents pass down physical traits to their children is explored alongside the transmission of other elements. The author suggests that beyond genetics, there are deeper influences that shape children, including distinct themes and life experiences. This perspective emphasizes how children inherit not just their parents' appearances but also the complex stories and cultural backgrounds that define their identity, ultimately enriching their understanding of the world. The interplay between inherited traits and the environment highlights the multifaceted nature of personal development.