EUCROMATINA HETEROCROMATINA PDF

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retículo endoplásmico rugoso, eucromatina e heterocromatina. Da mesma maneira, quantificou-se a relação núcleocitoplasma e a área de cada tipo celular . A partir d’estudis de citologia, la cromatina es pot separar en dos subtipus diferents: eucromatina i heterocromatina. Així, l’heterocromatina originalment va ser. Heterocromatina Compactación del ADN Eucromatina Es una forma de la cromatina ligeramente compactada con una gran cantidad de genes.

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Jacob y Monodfueron responsables del aislamiento de los primeros represores genicos. Esta proteina de fusion nueva retiene la actividad catalitica de la proteina original ABL pero no esta sujeta a los mecanismos normales de regulacion celular. The results from the analysis of the morphological data obtained with the transmission electronic microscopy fundamentally considering those relative to the similar volumetric fractions of cytoplasm, nucleus and those corresponding to the rough endoplasm reticule from the normal as well as irradiated fibroblasts, demonstrated that these cells possessed similar morphological parameters, indicating that the effects produced by the stimulations with infrared laser did not have an inhibiting action, nor an activating one of the cellular activity, situation which would translate in concluding primarily that these cells displayed a heterocromatin function translated to a rate of protein synthesis-secretion practically similar.

Send this link to let others join your presentation: April 10, ; Revised: P; Matson, E; Marques, M. J Clin Laser Med Surg.

Controla todas las actividades celulares. They were prepared for transmission electronic microscopy.

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EUCROMATINA Y HETEROCROMATINA PDF

Volumetric fractions of the quoted cell corresponding to nucleus, cytoplasm, rough endoplasmatic reticule, eu and heterochromatin were evaluated. J Clin Laser Med Surg. P; Matson, E; Marques, M.

Estos investigadores demostraron que la regulacion era llevada a cabo por proteinas, y que estas se asociaban a ciertas zonas especificas de los genes llamadas regiones reguladoras. Transmission electronic micrographs of normal and irradiated fibroblasts were obtained with final increase of En la division toman aspecto de L al ser arrastrados.

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Sin embargo si la celula con una inversion heteorcromatina entra en meiosis, el cromosoma aberrante no puede parearsede modo correcto con su pareja homologa a causa de diferencias en el orden de sus genes.

Junqueira and Salles, Constrain to simple back and forward steps. The volumetric fractions corresponding to the euchromatine increased, while those corresponding to the heterochromatin decreased from the hetreocromatina fibroblasts to those irradiated Fig.

Transmission electronic micrographs of normal and irradiated fibroblasts were obtained with final increase of Stereological Method Beginning with the blocks for electronic microscopy, ultra fine slices were obtained in which each one of the cellular types were micrographed with an augmentation of Results are in Figure 3.

In relation to the absence of intracellular collagen, the present results coincided with those of Berkovitz and Pacy obtained by studying the ultra eucromatina y heterocromatina of the fibro-cartilage also pertaining to the temporo-mandibular joint of the rabbit. The present findings also coincided with those found by Pogrel et al.

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Albatros PDF i like sharing, but it is not as easy as seems. Present to your audience. De modo similar a las inversiones, por lo general una translocacion que ocurre en una celula somatica tienen poco efecto en la funcion de la celula o su progenie.

Eucromatina

Total points having an incidence on the investigated cell. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License.

Comments 0 Please log in to add your comment. Rio de Janeiro, Guanabara-Koogan, p. Copy code to clipboard.

Eucromatina – Wikipedia, a enciclopedia libre

Beginning with the blocks for electronic microscopy, ultra fine slices were obtained in which each one of the cellular types were micrographed yeterocromatina an augmentation of The present results differed from those obtained by Chomette et al.

The volumetric fractions occupied by the nucleus as well as the rough endoplasmatic reticule RER manifested in great dilatated cisterns were maintained constant in the normal fibroblasts as well as in the irradiated fibroblasts. In the same manner, the nucleus – cytoplasmatic relation and the area of each cellular type were quantified. Do you really want to delete this prezi? Volumetric fraction of the cellular component Pa: Houston, we have a problem!