Understanding Genetics' Role in Behavior

Very Hard Unit 2: Biological Bases Genetics And Behavior

In the exploration of genetics and behavior, scientists employ various methodologies to discern how genetic factors influence psychological traits. A notable example is the implementation of genome-wide association studies (GWAS), which identify specific genetic variants associated with particular behaviors or psychological conditions. However, this complexity raises questions about the degree to which these traits can be attributed solely to genetics versus environmental impacts. Given this perspective, which of the following statements about the influence of genetics on behavior is the most accurate?

Genetic predispositions solely determine behavior without any influence from environmental factors.

Genome-wide association studies provide definitive causal links between specific genes and behavioral outcomes.

Heritability estimates suggest that environmental factors can substantially moderate genetic influences on behavior.

Behavioral traits are entirely unchangeable as they are strictly dictated by one’s genetic makeup.

The influence of genetics on behavior is identical across all populations regardless of cultural or environmental contexts.

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