Which term refers to the process by which genes are turned on or off by cellular material?

Question

Quizplus · Accepted Answer

Epigenetics refers to the process by which genes are turned on or off by cellular material, typically through modifications to DNA or chromatin structure. Stress (A) refers to a taxing or challenging experience that may impact gene expression, but is not the primary process by which genes are turned on or off. Diathesis (B) refers to a genetic predisposition to a particular condition, but does not directly involve the process of gene expression. Polygenics (D) refers to the inheritance of traits that are controlled by multiple genes, but also does not directly involve the process of gene expression.

Which Term Refers to the Process by Which Genes Are