. The biology of the cell surface. Cytology. THE FERTILIZATION-PROCESS theless it can be discerned after this union. Finally, the sperm-nucleus loses its visible identity through complete fusion with the egg-nucleus. Soon thereafter two asters arise, presumably from the single sperm-aster. The foregoing accounts of fertilization, embracing eggs of the four classes made with respect to the period in matu- ration when eggs are in the stage for reception of sperma- tozoa, reveal two phenomena as common to all animal eggs. First, after attachment of the spermatozoon to the egg- surface, the egg-su


. The biology of the cell surface. Cytology. THE FERTILIZATION-PROCESS theless it can be discerned after this union. Finally, the sperm-nucleus loses its visible identity through complete fusion with the egg-nucleus. Soon thereafter two asters arise, presumably from the single sperm-aster. The foregoing accounts of fertilization, embracing eggs of the four classes made with respect to the period in matu- ration when eggs are in the stage for reception of sperma- tozoa, reveal two phenomena as common to all animal eggs. First, after attachment of the spermatozoon to the egg- surface, the egg-surface undergoes a change with the result. 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 Just, Ernest Everett, 1883-1941. Philadelphia, P. Blakiston's son & co. , inc


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Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity