Imagine you have a twin that has major depressive disorder.Are your chances of developing this disorder influenced by whether you are an identical or a fraternal twin?

Question

Quizplus · Accepted Answer

Identical twins share 100% of their DNA, so if one twin has major depressive disorder, there is a higher chance that the other twin will also develop the disorder compared to fraternal twins who only share 50% of their DNA. This suggests that genetics play a significant role in the development of major depressive disorder. Gender does not appear to be a significant factor in the development of the disorder. Additional genetic relatives with depressive disorders could also increase the overall risk of developing the disorder, but the strongest predictor would be having an identical twin with the disorder.

Imagine You Have a Twin That Has Major Depressive Disorder