Scientists Studying Behavior Genetics in Humans Commonly Use Which of the Following

Multiple Choice

Scientists studying behavior genetics in humans commonly use which of the following types of studies for their research on people?

A) Twin, family, and selection studies, but not strain studies.
B) Twin and family studies, but not selection or strain studies.
C) Twin, family, selection, and strain studies.
D) Twin studies, but not family, selection, or strain studies.