what is most likely responsible for this result? what is most likely responsible for this result? the embryo passes through multiple rounds of the cell cycle, but telophase does not occur during the m phases. the embryo passes through multiple rounds of the cell cycle, but cytokinesis does not occur during the m phases. the embryo passes through multiple rounds of the s phases, but the m phases do not occur. this large cell remains in the g0 phase for a long time.