Twin Studies Have Shown That If One Identical Twin Has

question 25

Multiple Choice

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) 10-25
• B) 25-50
• C) 40-70
• D) 90

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Definitions:

William Brennan

An influential Associate Justice of the U.S. Supreme Court, known for his progressive views and serving from 1956 to 1990.

Secretary of Defense

The head of the Department of Defense and a key adviser to the President, responsible for the formulation and execution of general defense policy and management of all branches of the U.S. armed forces.

George H.W. Bush

The 41st President of the United States, serving from 1989 to 1993, known for his leadership during the end of the Cold War and the Gulf War.

Berlin Wall

A fortified barrier that divided Berlin from 1961 to 1989, built by the German Democratic Republic (East Germany) to prevent East Germans from fleeing to West Berlin and West Germany.