Comparing heterosexuals to lesbians and gay men, physical differences in handedness, fingerprints, finger size ratio, and certain brain structures have been found.

Question

Quizplus · Accepted Answer

Research has shown that there are some physical differences in handedness, fingerprints, finger size ratio, and certain brain structures between heterosexuals and lesbians/gay men, suggesting a biological component to sexual orientation.

Comparing Heterosexuals to Lesbians and Gay Men, Physical Differences in Handedness