What does it mean to say that the heritability of a trait is 70 percent
A) Thirty percent of a person's expression of that trait is due to environmental factors.
B) Seventy percent of a person's expression of that trait is due to heredity.
C) Seventy percent of the variability of that trait in a group is accounted for by genetic variation.
D) The correlation between identical twins should be approximately +0.70 for that trait.
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