Are sex cells haploid or diploid. Then please tell your friends! These gametophytes are generally prostrate. Process of cell division resulting in the formation of two daughter cells genetically identical to the parent cell. They are directed by chemotaxis--swimming up a concentration gradient of a chemotactic chemical agent. It is also found in many mollusksfor example, in radulae and in the beaks of cephalopods. Process of cell division by which a diploid cell produces four haploid cells. Calvin cycle. Explore the year a word first appeared. Reproduction may be asexual or sexual.