FIG. 7.
Diagram of endodyogeny. As a parasite begins to divide, two IMCs begin to develop in the middle of the cell from what appears to be a rudimentary conoid and microtubule-organizing center (polar ring). As the IMC extends from these structures, the nucleus (N) and mitochondrion (Mitoch.) divide into these membranous outlines. Nascent apical organelles (NO) develop within the anterior poles as the daughter cells grow. Eventually, the entire cytoplasm is divided between the daughters and the IMC of the mother dissociates. A cleavage furrow divides the cells from the anterior pole. This division continues down the length of the cells until it reaches the posterior end, where it can leave a residual body connecting the two daughters.