Two individuals with the same genetic composition, living in entirely different environments, will exhibit most of the same behaviors according to biosocial theory.

• A. True
• B. False
• C. Sometimes
• D. Cannot be determined

Answer: (B)

Biosocial theory shows that behavior arises from the interaction of biology and environment. Genes set tendencies, but the environment—parenting, culture, stress, opportunities, learning experiences—shapes when, how, and to what extent those tendencies appear. Even identical genetic makeup can lead to different behaviors when the environments differ, because environmental factors can amplify, dampen, or redirect genetic predispositions. Epigenetic changes illustrate how experiences can alter gene expression, further producing divergence in behavior between individuals in different settings. So the statement is false: the same genome does not guarantee the same behaviors across different environments.