Monozygotic twins are more likely to be concordant for homosexuality than dizygotic twins at a rate of about ________ .

Name: Monozygotic twins are more likely to be concordant for homosexuality than dizygotic twins at a rate of about ________ .
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Monozygotic twins, who share 100% of their genes, are more likely to both be homosexual compared to dizygotic twins, who share only about 50% of their genes, at a rate of about 2:1. This suggests a genetic component to sexual orientation.

Monozygotic Twins Are More Likely to Be Concordant for Homosexuality