Biology Forums - Study Force

A researcher conducts an adoption study to estimate the heritability of intelligence. If intelligence is primarily influenced by the environment, the researcher will find that
A) adopted children's intelligence level is more similar to that of their biological parents than that of their adoptive parents.
B) adopted children's intelligence level is more similar to that of their adoptive parents than that of their biological parents.
C) adopted children's intelligence level is unrelated to that of either their biological or adoptive parents.
D) he cannot determine heritability with an adoption study, therefore he will need to do a twin study.

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