Which of the following examples describes a gene-environment interaction?
a. Exposure to poverty in childhood is associated with poor academic performance.
b. A boy inherits a perfectionistic personality characteristic and tends to choose activities that have a low chance of failure, which actually reinforces his perfectionistic tendencies.
c. Fair-skinned people are genetically more prone to develop skin cancer; however, if they avoid excessive sun exposure, this genetic predisposition may not lead to the development of skin cancer.
d.A person's genetic risk for heart disease is compounded by an additional genetic risk for diabetes.
Answer: c. Fair-skinned people are genetically more prone to develop skin cancer; however, if they avoid excessive sun exposure, this genetic predisposition may not lead to the development of skin cancer.
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