Genetics vs. Environment in Behavior

Consider the role of genetics in shaping individual behavior as illustrated through behavioral genetics research. Behavioral genetics studies how much of a person's traits and actions are determined by their genetic makeup versus environmental factors. In a significant study, researchers assessed twin siblings raised together versus those raised apart. The findings indicated greater similarities in specific behaviors among identical twins compared to fraternal twins regardless of their rearing environment.

Based on this study, which of the following statements about the relationship between genetics and behavior is most accurate?