. Alternating generations : a biological study of oak galls and gall flies. Generations, Alternating; Gallflies; Galls (Botany). Fig. n. Diagram of the formation of ova in ^scan's megalocephala, var. bivalens. A. The primitive germ-cell. B. Fully developed germ- mother-cell, with chromosomes doubled. C. The first nuclear division. ]). One daughter-cell (oocyte) extnided as the first polar body. E. The second or reducing division; the retained, and the extruded oocyte, dividing, and forming four grand-daughter cells (oozoa). F. The ripe ^gS"C^l^ the functional oozoon ; the other oozo
. Alternating generations : a biological study of oak galls and gall flies. Generations, Alternating; Gallflies; Galls (Botany). Fig. n. Diagram of the formation of ova in ^scan's megalocephala, var. bivalens. A. The primitive germ-cell. B. Fully developed germ- mother-cell, with chromosomes doubled. C. The first nuclear division. ]). One daughter-cell (oocyte) extnided as the first polar body. E. The second or reducing division; the retained, and the extruded oocyte, dividing, and forming four grand-daughter cells (oozoa). F. The ripe ^gS"C^l^ the functional oozoon ; the other oozoa, 2, 3, and 4, being the polar 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 Adler, Hermann; Straton, Charles Robert. Oxford : The Clarendon Press
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectgallsbo, bookyear1894
