For 10 points, name this form of asexual reproduction in which an embryo forms without fertilization.
Stelzer et. al observed that the Mendelian transition to this process coincided with dwarfism in a population of Brachionus calyciflorus.  Daphnia exhibits the "cyclic" variety by switching between it and its counterpart depending on environmental conditions. The obligate form of this process, known as thelytoky, is not as common as the other types: deuterotoky and arrhenotoky. First observed by Charles Bonnet in (*) aphids, this process is exclusively used by many species of whiptail lizards and is used sometimes by worker bees if the queen is dead. If meiosis is involved, this process is termed "automictic;" in all varieties the result is usually female. For 10 points, name this form of asexual reproduction in which an embryo forms without fertilization.
Stelzer et. al observed that the Mendelian transition to this process coincided with dwarfism in a population of Brachionus calyciflorus.  
parthenogenesis [prompt on asexual reproduction; prompt on reproduction; prompt on virgin birth; accept all forms mentioned in this question, including obligate parthenogenesis, thelytoky, deuterotoky, arrhenotoky, cyclic parthenogenesis, automictic parthenogenesis, apomictic parthenogenesis, and apomixis, until they are mentioned]