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TWO ADDITIONAL COMPONENTS OF HUMAN SEXUALITY - page 8 / 29

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SEXUAL ORIENTATION

Look at sexual orientation as a variable phenotype in the population

Make a distinction between gender identification and sexual orientation

Most gay men and lesbian women have a gender identification consistent with their biological sex

But they are physically attracted to members of the same sex

There may be some evidence that sexual orientation may have a genetic basis

Must look at the heritability of a trait

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