Which Statement About Sexual Differentiation and Behavior of the Fruit

Multiple Choice

Which statement about sexual differentiation and behavior of the fruit fly Drosophila melanogaster is false?

A) Male and female fruit flies have the same dsx and fru gene products.
B) The gene fruitless (fru) controls development of male courtship behavior in Drosophila.
C) The genes fruitless and doublesex are part of gene cascades that control sexual differentiation.
D) Gene cascades offer many points for a change in a single gene to influence behavior.
E) The gene doublesex (dsx) controls development of male anatomy in Drosophila.