Craig has one short copy and one long copy of the serotonin transporter gene.What does this tell us about his vulnerability for major depressive disorder?

Question

Quizplus · Accepted Answer

Having one short copy and one long copy of the serotonin transporter gene increases the likelihood of developing major depressive disorder, but it is not a guarantee. Environmental factors, such as exposure to severe stress, can also play a role in the development of the disorder. Therefore, Craig has a moderate chance of developing major depressive disorder, but this probability increases if he is exposed to severe stress.

Craig Has One Short Copy and One Long Copy of the Serotonin