Which of the Following Statements About Homosexual Behavior Is True

Multiple Choice

Which of the following statements about homosexual behavior is true?

A) Twin studies indicate that there is no genetic component to homosexual behavior.
B) The genes determining homosexual behavior has been identified on the Y chromosome.
C) Most studies on homosexual behavior have only looked at males.
D) A single gene is responsible for homosexual behavior.
E) Homosexual behavior shows higher concordance in fraternal twins than in identical twins.