Tom and Rob are twins. Tom is gay. According to heritability studies, Rob is more likely to be gay if they are _____________ twins.

Question

Quizplus · Accepted Answer

Identical twins share all of their genes while fraternal twins share on average 50% of their genes. Studies have shown that identical twins are more likely to both be gay compared to fraternal twins, suggesting a genetic influence on sexual orientation.

Tom and Rob Are Twins