Photoacceleration of development in chick embryos
β Scribed by P.B. Siegel; S.T. Isakson; F.N. Coleman; B.J. Huffman
- Book ID
- 115831228
- Publisher
- Elsevier Science
- Year
- 1969
- Weight
- 306 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0010-406X
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Electromyograms (EMG's ) of developing chick embryos were recorded with an electrolytically sharpened tungsten electrode and with a concentric unipolar electrode. Earlier observations of the occurrence of movements on the sixth day were confirmed. Before the twelfth day, only small irregular potent
## Abstract Ventral bars, cartilaginous projections from the ventral aspect of the synsacrum that contact and form a joint with the ilium, were found in all normal chick embryos of age E9 and older. Bars were absent in a number of embryos which had been paralyzed from age E4 by the use of the acety