When Examining the Rates of Homosexuality Between Identical Twins and Fraternal

Multiple Choice

When examining the rates of homosexuality between identical twins and fraternal twins or non-twin siblings, researchers found that if one identical twin is gay, his brother has a __________ percent chance of being gay as well, and if a fraternal twin is gay, his brother has a __________ percent chance of being gay as well.

A) 21; 7
B) 52; 22
C) 75; 18
D) 98; 33