Research has found that those who have experienced abuse as a child may be at an increased risk for developing PTSD if they experience trauma as an adult because of ________,which are organic molecules that attach to chromosomes to turn specific genes on or off.

A) epigenetic marks
B) stimulus generalization
C) the anterior cingulate cortex
D) the amygdala

Epigenetic Marks

Chemical modifications to the DNA or histone proteins that affect gene activity without altering the DNA sequence, impacting how genes are expressed.

PTSD

Post-Traumatic Stress Disorder, a mental health condition triggered by experiencing or witnessing a terrifying event, characterized by severe anxiety, flashbacks, and uncontrollable thoughts about the event.

Organic Molecules

Organic molecules are compounds found in living organisms composed primarily of carbon atoms in rings or long chains, where other atoms like hydrogen, oxygen, nitrogen, and phosphorus are also attached.