…For example, the appearance of characteristics of lower vertebrates, such as gill arches, notochord, and tails, in human embryos was a good example, and he named this phenomenon Palingenesis. In contrast, he distinguished the phenomenon in which new structures not found in ancestral animals appear during the developmental process, such as the placenta of mammals, and called it cenogenesis. He called his theory the "principle of biological development." … *Some of the terminology that mentions "Cenogenesis" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…たとえばヒトの胚に鰓弓(さいきゆう),脊索,尾など下等脊椎動物の特徴が現れることが好例とされ,この現象を彼は原形発生Palingenesisと名づけた。それに対して,哺乳類の胎盤のように,祖先の動物にはない新しい構造が発生過程に現れる現象を区別し,変形発生Cenogenesisとよんだ。そして自分の学説を〈生物発生原則〉と称したのである。… ※「Cenogenesis」について言及している用語解説の一部を掲載しています。 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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