The heritability coefficient for smoking is around + .50 in a particular group. This means that
A)the observed variation in smoking is equally due to both genes and the environment
B)the observed variation in smoking is due mostly to genes
C)the observed variation in smoking is due mostly to the environment
D)smoking is genetically inherited
E)there was little variation in smoking within the group

Question

Quizplus · Accepted Answer

The heritability coefficient (often denoted as h^2) of +.50 suggests that approximately 50% of the observed variation in smoking behavior within the particular group can be attributed to genetic differences, with the other 50% due to environmental factors. This implies that the observed variation is equally due to both genes and the environment.

The Heritability Coefficient for Smoking Is Around