Which Statement About Cytoplasmic Determinants in Drosophila Is Not True

Multiple Choice

Which statement about cytoplasmic determinants in Drosophila is not true?

A) They specify the dorsal-ventral and anterior-posterior axes of the embryo.
B) Their positions in the embryo are determined by cytoskeletal action.
C) Some are products of specific genes in the mother fruit fly.
D) They do not produce gradients.
E) They have been studied by the transfer of cytoplasm from egg to egg.