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.

Question

Quizplus · Accepted Answer

Studies have shown that if one identical twin is gay, there is a significantly higher likelihood (52%) that the other twin is also gay compared to fraternal twins (22%), suggesting a genetic component to sexual orientation.

When Examining the Rates of Homosexuality Between Identical Twins and Fraternal