Researchers who have studied the risk for alcohol dependence among family members have found that about _____ percent of the variance in liability may be due to genetic influence.

Question

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Research has shown that approximately 50-60% of the variance in liability for alcohol dependence may be due to genetic influence. This suggests that there is a significant genetic component to alcohol dependency, although environmental factors also play a role.

Researchers Who Have Studied the Risk for Alcohol Dependence Among