The Model Which Best Explains the Inheritance of Complex Traits

Multiple Choice

The model which best explains the inheritance of complex traits, such as height, weight, and IQ, attributes the control of the traits to:

A) a single gene with dominant and recessive alleles.
B) two genes with independent assortment.
C) more than one gene with no effect of the environment.
D) more than one gene plus environmental effects.
E) environmental factors and not genetic factors.