Embryo
The embryo was an early stage of the Dalek mutants created by Davros. (TV: Genesis of the Daleks)
During the era in which the Daleks were confined to the Dalek City, new embryos were grown in a subterranean level. (AUDIO: Return to Skaro) After the Thal-Dalek battle had knocked out the city's main power, (TV: The Daleks) autonomic protocols sealed off the incubation level and placed the embryos in suspended animation until power was restored to the city. Spending decades in such a state allowed the new generation of Daleks to overcome their dependance on radiation. (AUDIO: Return to Skaro)
The Imperial Daleks gestated their embryos in a creche aboard their mothership. The embryos were fed a diet of nutrients while listening to indoctrination tapes. (PROSE: Remembrance of the Daleks)
During the Last Great Time War, new embryos were grown by harvesting superfluous body parts, such as an intact second eye, from fully grown Dalek mutants. (PROSE: Dalek) When on Moldox, the War Doctor sabotaged the cooling system of the Eternity Circle's cloning complex, killing the gestating embryos. (PROSE: Engines of War)
Following the conflict, the Cult of Skaro attempted to grow new Dalek embryos but their creations proved non-viable, the Cult leaving them in the sewers between New York City to die. (TV: Daleks in Manhattan, Evolution of the Daleks)
