. The elements of experimental embryology. Embryology, Experimental; Embryology. 72 ORIGIN OF POLARITY, SYMMETRY, AND ASYMMETRY of the Gastropod egg is of the spiral type, and it has been shown that the direction of the initial spiral cleavage division is opposite in dextral and sinistral races of snails.^ It is therefore probable that the orientation of the spindles of the first spiral cleavage division is responsible for the determination of the type of asymmetry which. <^^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for read
. The elements of experimental embryology. Embryology, Experimental; Embryology. 72 ORIGIN OF POLARITY, SYMMETRY, AND ASYMMETRY of the Gastropod egg is of the spiral type, and it has been shown that the direction of the initial spiral cleavage division is opposite in dextral and sinistral races of snails.^ It is therefore probable that the orientation of the spindles of the first spiral cleavage division is responsible for the determination of the type of asymmetry which. <^^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Huxley, Julian, 1887-1975; De Beer, Gavin, Sir, 1899-1972. New York [Hafner Pub. Co. ]
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Keywords: ., bookcentury1900, bookcollectionbiodiversi, booksubjectembryology