The Journal of experimental zoology . l66 • Edwin G. Conkltn. Right or Left Half or Three-Quarter Embryos; Gastrula to Tadpole. Drawn fromFixed and Stained Material. Fig. 31. Right half gastrula of about 220-cell stage; spurted in the 4-cell stage and fixed 3 hourslater. The neural plate, chorda and mesoderm cells are present only on the right side and in theirnormal positions and numbers. Fig. 32. Left half of young tadpole, dorsal view; spurted in the 4-cell stage, fixed 5 hours notochord is normal except for size and number of cells; the muscle and mesenchyme cellsare present only
The Journal of experimental zoology . l66 • Edwin G. Conkltn. Right or Left Half or Three-Quarter Embryos; Gastrula to Tadpole. Drawn fromFixed and Stained Material. Fig. 31. Right half gastrula of about 220-cell stage; spurted in the 4-cell stage and fixed 3 hourslater. The neural plate, chorda and mesoderm cells are present only on the right side and in theirnormal positions and numbers. Fig. 32. Left half of young tadpole, dorsal view; spurted in the 4-cell stage, fixed 5 hours notochord is normal except for size and number of cells; the muscle and mesenchyme cellsare present only on one side; the neural plate is abnormal in form but not in position. Fig. 33. Right half of young tadpole, dorsal view; spurted in the 4-cell stage, fixed 4^ hours later(slightly younger stage than Fig. 32). The notochord consists of a small number of cells which areinterdigitating; muscle cells and mesenchyme lie on the right side of the notochord, but not on the left,though the muscle cells have begun to grow around to the lef
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Keywords: ., bookauthorwi, bookcentury1900, bookdecade1900, booksubjectzoology
