Predestined fate

Japanese: 予定運命 - よていうんめい（英語表記）prospective fate

A term in developmental biology. If development proceeds normally, each germinal region of an animal's early embryo will eventually form specific tissues and organs and become a specific part of the individual. For example, in amphibians such as newts and frogs, the central nervous system and sensory organs form in the dorsal germinal region of the blastula, because development proceeds without abnormalities and the germinal region is able to follow the planned developmental path without error. The developmental fate that each germinal region of an embryo should follow during the course of normal development is called the predestined fate of each germinal region.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

発生学用語。動物の初期胚の各胚域は，発生が正常に進行すれば，やがてある特定の組織や器官を形成して個体の特定部分を構成する。例えばイモリやカエルなど両生類では，胞胚の背側の胚域から中枢神経系や感覚器などができてくるが，それは発生が異常なく進行し，その胚域が予定された発生の道筋を誤りなくたどることができたからである。このように胚の各胚域が，正常に進行する発生の過程でたどるべき発生運命を胚域それぞれの予定運命という。

出典　株式会社平凡社世界大百科事典第２版について　情報

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