The finding that people with one type of serotonin transporter gene and childhood maltreatment had higher rates of depression than either those without the gene or those with the gene without the maltreatment suggests that
A) only one type of gene causes depression.
B) both a gene and certain environmental factors need to be present to cause depression.
C) childhood maltreatment causes depression.
D) either a gene or certain environmental factors need to be present to cause depression.

Question

Quizplus · Accepted Answer

The finding suggests a gene-environment interaction, where both the presence of a specific gene and environmental factors like childhood maltreatment contribute to the development of depression.

The Finding That People with One Type of Serotonin Transporter