Division of the nucleolus without any evidence of division of the nucleus.
The nucleolus shows an unstainable point at the centre known as the endonucleolus or nucleoluolus (Auerbach).
with nucleolus and plastid ~.
2, L), a nucleolus appears, a nuclear membrane is formed, and daughter nuclei are thus constituted which possess the same structure and staining reactions as the mother nucleus.
The nucleolus appears to form a part of t-he Linin network, but has usually also a strong affinity for nuclear stains.
The nucleolus is elongated, and its longest measurement lies in the direction of the equatorial plane of the nucleus.
Cell in process of karyokinetic division with retention of the nucleolus during the division.
Division of the nucleolus and formation of nuclear plate.
In the earlier accepted notion of direct segmentation, usually known as the schema of Remak, division was described as commencing in the nucleolus, as thereafter spreading to the nucleus, and as ultimately implicating the cell-substance.
Division of the nucleolus by elongation, construction, and equilateral division of the nucleus.
to allow of this interpretation being placed upon them, and many of them are probably nothing more than granules of the fragmented nucleolus.
with nucleus, nucleolus -
Wager speaks with greater reserve, acknowledging, however, the central body to be a nucleus of a rudimentary type, but devoid of nuclear membrane and nucleolus.
Nucleolar components involved in ribosome biogenesis cycle between the nucleolus and nucleoplasm in interphase cells.
The ORF3 protein also enters the cell nucleus, specifically targeting the nucleolus.
The cells are larger than in CLL, with a prominent central nucleolus.
This latter feature differentiates Trichamoeba from the otherwise similar Saccamoeba which has a nucleus with a single large nucleolus.
ribosome biogenesis cycle between the nucleolus and nucleoplasm in interphase cells.
The results at first obtained were very confusing and seemed to show that nucleic acid is very variable in constitution, but thanks to the work ~f Schmiedeberg and Stendel (Germany), Ivar Bang (Sweden) and Walter Jones and Levene (America), the confusion has been reduced to some sort of order, and it now seems probable that all ordinary nucleic acids yield two purine bases, adenine and guanine; two pyrimidine bases, cytosine and thymine and a hexose carbohydrate, the identity of which is uncertain.i The NucleolusIn the majority of plant-nuclei, both in the higher and lower plants, there is found, in addition to the chromatin network, a deeply stained spherical or slightly irregular body (sometimes more than one) called the nucleolus (fig.
The relation of the nucleolus to the chromosomes is clearly seen in the reconstruction of the daughter nuclei after division in the cells of the root-apex of Phaseolus (fig.
I, B) out of which is evolved the nucleolus and nuclear network (figs.
2, B), and this is preceded by a peculiar contraction of the thread around the nucleolus which has been termed synapsis (fig.
In other cases the two nuclei place themselves side by side, the nuclear membrane between them disappears, and the contents fuse togethernuclear thread with nuclear thread, and nucleolus with nucleolusso completely that the separate constituents of the nuclei are not visible.
7) the nuclei possess all the structures found in the higher plants, nuclear membrane chromatin network and nucleolus (fig.
xxxviii.; Meyer, Untersuchungen fiber die Starke-Kdrner (J ena, 1895); Montgomery, Comparative Cytological Studies, with especial regard to the Morphology of the Nucleolus, Journ.
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