The Percentage of Identical (Monozygotic) Twins in Which Both Twins

question 81

Multiple Choice

The percentage of identical (monozygotic) twins in which both twins are homosexual is 50%. This means

• A)homosexuality is determined by genetics.
• B)genes are only one influence for sexual orientation.
• C)family relationships determine sexual orientation.
• D)genes are not an influence for sexual orientation.

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