An adoption study conducted in Sweden found that males whose biological fathers were steady drinkers were about __________ times more likely to become steady drinkers themselves than were males whose fathers did not abuse alcohol.

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The adoption study in Sweden found that males whose biological fathers were steady drinkers were about 7 times more likely to become steady drinkers themselves compared to those whose fathers did not abuse alcohol. This suggests a genetic predisposition to alcohol abuse.

An Adoption Study Conducted in Sweden Found That Males Whose