The environmental contribution to bipolar disorder is most likely, at least in part, based on _____________.
A) prenatal exposure to toxic chemicals
B) overexposure to UV light
C) mutagens that damage DNA repair enzymes
D) epigenetic changes involving methylation and demethylation
E) childhood abuse

Question

Quizplus · Accepted Answer

Environmental factors can affect the epigenetic regulation of genes, including those involved in bipolar disorder. Methylation and demethylation are key epigenetic processes that can modulate gene expression and have been linked to bipolar disorder.

The Environmental Contribution to Bipolar Disorder Is Most Likely, at Least