Twin studies have shown that if one identical twin has either major depression or bipolar disorder,the chances that the other twin will develop a mood disorder are about ________ percent.
A)40 to 70
B)10 to 25
C)25 to 50
D)90

Question

Quizplus · Accepted Answer

Twin studies have shown that if one identical twin has either major depression or bipolar disorder, the chances that the other twin will develop a mood disorder are about 40 to 70 percent. This suggests that genetic factors play a significant role in the development of these disorders.

Twin Studies Have Shown That If One Identical Twin Has