Whether a man develops a heterosexual or homosexual orientation may be biologically related to the
A) daily level of circulating testosterone.
B) structure of his hypothalamus.
C) inheritance of an XXY chromosome pattern.
D) release of female sex hormones during puberty.

Question

Quizplus · Accepted Answer

Research suggests that the structure of the hypothalamus, specifically the size and function of certain regions, may be related to sexual orientation. For example, studies have found that the hypothalamus of gay men is more similar in structure and function to that of heterosexual women than to heterosexual men. This suggests that sexual orientation may have a biological basis.

Whether a Man Develops a Heterosexual or Homosexual Orientation May