Identical twins are somewhat ________ than fraternal twins to share a homosexual orientation;however,________.A) more likely;sexual orientation is influenced less by heredity than by environmentB) less likely;sexual orientation is influenced less by heredity than by environmentC) more likely;because sexual orientation differs in many twin pairs,other factors are also at workD) less likely;because sexual orientation differs in many twin pairs,other factors are also at work

Question

Identical twins are somewhat ________ than fraternal twins to share a homosexual orientation;however,________.A)  more likely;sexual orientation is influenced less by heredity than by environmentB)  less likely;sexual orientation is influenced less by heredity than by environmentC)  more likely;because sexual orientation differs in many twin pairs,other factors are also at workD)  less likely;because sexual orientation differs in many twin pairs,other factors are also at work

Connor Wisdom · Accepted Answer

Final Answer : C, Explanation :  Identical twins are more likely than fraternal twins to share a homosexual orientation, but this does not mean that sexual orientation is solely determined by genetics. The fact that sexual orientation differs in many twin pairs suggests that other factors, such as environmental influences, must also play a role.

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