Which Statement About Embryonic Development Is True

Multiple Choice

Which statement about embryonic development is true?

A) Determination is the process by which blastomeres differentiate into specific cell types.
B) Preimplantation genetic diagnosis is possible in humans because they have regulative development.
C) In Drosophila, pole cells are the last cells to become determined.
D) Determination occurs later in species with mosaic development than in species with regulative development.
E) If the cells of a roundworm embryo in the two-cell stage are separated, each will develop into a complete animal.