Human Heredity 11th Edition by Michael Cummings

تمرين 18

Of the following findings, which does not support the idea that alcoholism is genetic?
A) Some strains of mice select alcohol over water 75% of the time, whereas others shun alcohol.
B) The concordance value is 55% for MZ twins and 28% for DZ twins.
C) Biological sons of alcoholic men who have been adopted have a rate of alcoholism more like that of their adoptive fathers.
D) There is a 20% to 25% risk of alcoholism in the sons of alcoholic men.
E) None of these.