Author Question: Researchers have discovered a possible biological basis for sexual orientation that has become known ... (Read 47 times)

Bob-Dole · **on:** Jun 18, 2018

Researchers have discovered a possible biological basis for sexual orientation that has become known as the older brother effect, meaning ________.

a. as the number of older brothers a man has decreases, his chances of being gay increases
b. as the number of older brothers a woman has increases, so do her chances of being lesbian
c. as the number of older brothers a man has increases, so do his chances of being gay
d. the oldest brother is more likely to be gay

Question 2

The research on the index/ring finger ratio has found ________.

a. the difference in index and ring finger length is greater in gay men than women
b. the index/ring finger ratio in lesbian women is more similar to that of men than straight women
c. there is no difference for lesbian women and gay men
d. gay men have a longer ring finger than heterosexual men