Research into the Genetic Influence on the Development of Depression

Multiple Choice

Research into the genetic influence on the development of depression has found that:

A) individuals who inherit one copy of the short (serotonin transporter) gene and one copy of the long gene are protected from developing depression.
B) individuals who inherit two copies of the long (serotonin transporter) gene are at a greater risk to develop depression.
C) individuals who inherit two copies of the short (serotonin transporter) gene are protected from developing depression.
D) individuals who inherit two copies of the short (serotonin transporter) gene are at a greater risk to develop depression.