File:The cell in development and inheritance (1911) (20587925105).jpg

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Title: The cell in development and inheritance
Identifier: cellindevelopmen1911wils (find matches)
Year: 1911 (1910s)
Authors: Wilson, Edmund B. (Edmund Beecher), 1856-1939
Subjects: Cells
Publisher: New York, Macmillan
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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4i8 INHERITANCE AND DEVELOPMENT We now proceed to the consideration of experiments which show that in some animal eggs such predetermination may go much farther, so that the development does, in fact, show many of the features of a mosaic-work, as maintained by Roux. The best-determined of these cases is that of the ctenophore-egg, as shown by the work of Chun,
Text Appearing After Image:
Fig. 189. — Partial larvse of the ctenophore Beroe. (Driesch and Morgan.) A. Half sixteen-cell stage, from an isolated blastomere. B. Resulting larva, with four rows of swimming-plates and three gastric pouches. C. One-fourth sixteen-cell stage, from an isolated blastomere. D. Resulting larva, with two rows of plates and two gastric pouches. E. Defective larva, with six rows of plates and three gastric pouches, from a nucleated fragment of an unseg- mented egg. F. Similar larva with five rows of plates, from above. Driesch, and Morgan ('95), and Fischel ('98). These observers have demonstrated that isolated blastomeres of the two-, four-, or eight-cell stage undergo a cleavage which, through the earliest stages, is exactly like that which it would have undergone if forming part of a com-

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Flickr tags
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  • bookid:cellindevelopmen1911wils
  • bookyear:1911
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Wilson_Edmund_B_Edmund_Beecher_1856_1939
  • booksubject:Cells
  • bookpublisher:New_York_Macmillan
  • bookcontributor:MBLWHOI_Library
  • booksponsor:MBLWHOI_Library
  • bookleafnumber:446
  • bookcollection:biodiversity
  • bookcollection:MBLWHOI
  • bookcollection:blc
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
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15 August 2015
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