Studies have shown that homosexuality tends to have a familial pattern, suggesting a genetic or hereditary component. Homosexual men are indeed more likely than heterosexual men to have male relatives who are also homosexual, indicating a possible genetic influence on sexual orientation.

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Homosexual Men

Question 176

Multiple Choice

Homosexual men

A) developed their homosexuality because they were exposed to estrogen as fetuses.
B) have larger clusters of neurons in the anterior hypothalamus than heterosexual men.
C) are less common than homosexual women.
D) are more likely than heterosexual men are to have male relatives who are homosexual.

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