Environmental influences can determine whether a gene is expressed.For some people,that will be decisive in whether they develop a psychological disorder.This best illustrates the need for

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The statement refers to the role of environmental influences on gene expression, which is a central concept in the study of epigenetics. Therefore, research on epigenetics is the best choice for addressing this need. The cognitive perspective (A) focuses on mental processes such as thinking and perception, while the social-cultural perspective (B) explores how cultural and social factors influence behavior. The DSM-5 (D) is a manual used to diagnose mental disorders, but it is not directly related to the role of environmental influences on gene expression.

Environmental Influences Can Determine Whether a Gene Is Expressed