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.

Question

Quizplus · Accepted Answer

Research has found that individuals who inherit two copies of the short (serotonin transporter) gene are at a greater risk to develop depression. This gene is involved in the transportation of serotonin, a chemical in the brain that regulates mood, and having two copies of the short gene can result in reduced serotonin levels, which may contribute to the development of depression. Individuals who inherit two copies of the long gene are not necessarily protected from depression, but they may have a lower risk compared to those with two copies of the short gene. Inheriting one copy of each gene does not necessarily protect against or increase the risk of depression.

Research into the Genetic Influence on the Development of Depression