Problem: Considering the heritability of intelligence, studies have compared the IQ scores of various pairs, including identical twins raised together, fraternal twins, and adopted children with their biological and adoptive parents. What do these studies reveal about the genetic and environmental contributions to intelligence? Need Assignment Help?
A. Adopted children's IQ scores are more similar to their adoptive parents than their biological parents.
B. Fraternal twins have IQ scores as similar as those of non-twin siblings.
C. Identical twins raised together have almost 90% similarity in IQ scores, highlighting the role of genetics.
D. Identical twins raised together show no more similarity in IQ scores than fraternal twins.