Permanent 发表于 2025-3-28 16:40:39
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Book 1997 issues in 1995/96. The essays aim at introducing current adepts of developmental biology to observations and experiments that have lead their predecessors towards basic concepts still influential today.angiography 发表于 2025-3-29 06:26:24
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Shaking a concept: Hans Driesch and the varied fates of sea urchin blastomeres,to oblivion, while two or three proved seminal. These last dealt with the shaking and compressing of cleavage stage sea urchin eggs, and served more than any others to shake confidence in the then widely accepted concept of mosaic development (see the previous essays in this series).plasma-cells 发表于 2025-3-29 13:26:30
,Hans Driesch the critical mechanist: “Analytische Theorie der organischen Entwicklung”,embryogenesis, only traces of which — such catchwords as . and .,and the . that a cell’s fate is a function of its position — have survived, the last owing to its happy re-incarnation in the mind of Lewis Wolpert (Wolpert 1986).Aggressive 发表于 2025-3-29 15:57:15
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Wilhelm Roux on embryonic axes, sperm entry and the grey crescent,vements in quite a spectacular way. Irrespective of this, he gained remarkable and still valid insights concerning the prospective median plane in frog eggs and the epigenetic factors that bring about its orientation — the latter study (Roux 1887) being adorned with further speculations on equal and unequal mitoses during early cleavage.虚弱 发表于 2025-3-30 02:29:59
,Aneuploidy disrupts embryogenesis: Theodor Boveri’s analysis of sea urchin dispermy,ous Essay) to the roles that the nucleus, and more specifically the chromosomes, play. The work reviewed in this Essay and the next was, according to E.B. Wilson (1918, p. 74/75), Boveri’s “crowning achievement, whether in respect to excellence of method or importance of result.”填满 发表于 2025-3-30 05:51:23
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