Combining the Monozygotic Twin and Adoption Studies, Researchers Often Study

Multiple Choice

Combining the monozygotic twin and adoption studies, researchers often study identical twins raised in different families. This method helps researchers determine

A) the effects of adoption on a child's gene expression.
B) the effects of adoption on a child's personality.
C) the effect of environment without the confound of shared genes.
D) the effects of genes without the confound of shared environments.