Evidence for an inherited tendency toward suicidal behavior comes from research involving
A)the human genome project.
B)callers to suicide hotlines.
C)adoption studies.
D)"psychological autopsies."

Question

Quizplus · Accepted Answer

Adoption studies have shown that individuals with a biological family history of suicide are more likely to attempt suicide than those without such a history. This suggests a genetic or inherited component to suicidal behavior.

Answer: D
 Psychological autopsies are investigations into the psychological history of individuals who have died by suicide. These studies have revealed a number of risk factors for suicide, including family history of suicide, which again suggests an inherited tendency toward suicidal behavior.

A) and B) may also provide some evidence for genetic or inherited factors in suicidal behavior, but C) and D) have more directly studied the potential genetic component.

Evidence for an Inherited Tendency Toward Suicidal Behavior Comes from Research