What's the difference between entosthoblast and nucleolus?
Entosthoblast
Definition:
(n.) The granule within the nucleolus or entoblast of a nucleated cell.
Example Sentences:
Nucleolus
Definition:
(n.) A little nucleus.
(n.) A small rounded body contained in the nucleus of a cell or a protozoan.
Example Sentences:
(1) Aside from these characteristic findings of HCC, it was important to reveal the following features for the diagnosis of well differentiated type of small HCC: variable thickening or distortion of trabecular structure in association with nuclear crowding, acinar formation, selective cytoplasmic accumulation of Mallory bodies, nuclear abnormalities consisting of thickening of nucleolus, hepatic cords in close contact with bile ducts or blood vessels, and hepatocytes growing in a fibrous environment.
(2) Concurrently, stereology was applied to quantitate: (1) the density of RNA labelling, and (2) changes in the size of the nucleus and nucleolus in response to estrogen treatment.
(3) Interestingly, actinomycin D treatment dissociated centromeres from localization within the segregated nucleolus.
(4) In the hybrid cells the human nucleolus organizer regions are active, as shown by Ag-AS staining and involvement in "satellite association."
(5) From these findings it can be concluded that the transcription of ribosomal DNA takes place in the dense fibrillar component of the nucleolus.
(6) The existence of two nerve-cell types has been proved: clear ones-big, eggshape with nucleus and an obvious nucleolus; and darker ones-smaller, fusiforms, with nucleus and a less perceptible nucleolus.
(7) Immunoelectron microscopy revealed that in spermatogonia, leptotene and pachtyene spermatocytes, and in Golgi phase spermatids, B23 and nucleolin were localized in the dense fibrillar component and granular component of the nucleolus but not in the fibrillar centers.
(8) In Drosophila melanogaster males, X-Y meiotic chromosome pairing is mediated by the nucleolus organizers (NOs) which are located in the X heterochromatin (Xh) and near the Y centromere.
(9) Peripheral blood specimen showed abnormal lymphoid cells with an oval to cleaved nucleus, rather condensed chromatin, occasional prominent nucleolus, and basophilic cytoplasms with vacuoles which seems to be a T-cell counterpart of B-cell chronic lymphocytic leukemia with mixed cell types.
(10) Late in infection, an additional marked accumulation occurred in both fibrillar and granular components of the nucleolus.
(11) However, no definite nucleolus has been demonstrated in the endozoite nucleus.
(12) It occurs within an intact nuclear membrane and is characterized by the persistence of the nucleolus and its transformation into 2 polar masses.
(13) The nucleolus, initially clustered at the nucleus centre, undergoes dispersion and assembles again towards the end of embryonic development.
(14) The photodamage was limited to the nucleus and nucleolus.
(15) Turnover rates of the components of systems for RNA synthesis of rat-liver nucleus, nucleolus, and nucleoplasm were investigated.
(16) The blocking of IP by cordycepin and the lack of inhibition at the nucleolus level under the same conditions, show that the two early effects of the action of estrogen on the immature rat uterus are not directly correlated.
(17) The basally-located nucleus is irregularly shaped with fine granular euchromatin and some peripheral heterochromatin: satellite karyosomes border the nucleolus.
(18) By using this method, we were able to measure the area, length, and width of the cell, the area of the nucleus and nucleolus, and the position of the nucleus (i.e., eccentricity).
(19) The identified pre-rRNA components (45 S, 41 S, 39 S, 36 S, 32 S and 21 S) are confined to the nucleolus and constitute about 70% of its rRNA.
(20) At 0 h, there is a single large fibrillar center in each nucleolus which splits into smaller and more numerous FCs until the number of FCs reaches five, the number of nucleolus organizers in normal haploid human cells.