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... as in the controls except that cell CD stained less intensely than cell AB during the stochastic phase, and it did not stain at all during the deterministic phase (Figure 3). It has been shown previously that, while large-scale zygotic transcription is not activated until approximately 27 hr AZD in ...
Cells & Cell Organelles
Cells & Cell Organelles

...  How do you build a barrier that keeps the watery contents of the cell separate from the watery environment?  FATS  ...
Protection of tobacco cells from oxidative copper
Protection of tobacco cells from oxidative copper

... as glucose (Kaneto et  al., 1994). In fact, slow but continuous production of O. 2 reportedly occurs in dilute solutions of glucose and other reducing sugars (Kaneko et al., 2006), suggesting that the addition of copper ions to the mixture of similar organic chemicals or biomolecules results in the ...
Viruses, Bacteria, Protists and Fungi
Viruses, Bacteria, Protists and Fungi

... • First fungi grow hyphae into a food source. • Then digestive chemicals ooze from the hyphae into the food, breaking it down into small substances that can be absorbed by the ...
Structural studies of phosphoinositide 3-kinase
Structural studies of phosphoinositide 3-kinase

Isolation, Characterization, and Immunoprecipitation
Isolation, Characterization, and Immunoprecipitation

Division Cycle in Yeast
Division Cycle in Yeast

... Geophys. Space Phys. 11, 731 (1973). 2. W. N. Hess, The Radiation Belt and Magnetosphere (Blaisdell, Waltham, Mass., 1968); J. G. Roederer, Ed., Physics and Chemistry in Space [Springer-Verlag, New York, 1970 (vols. 1 and 2), 1972 (vol. 4), and 1973 (vols. 6 and 7)]; B. M. McCormac, Ed., Earth's Mag ...
The prime cause of cancer.
The prime cause of cancer.

... in the field of cancer investigation since the discovery of the fermentation of tumors. For cancer metabolism, heretofore, measured so many thousand of times, has now been induced artificially in body cells by the simplest conceivable experimental procedure, and with this artificially induced cancer ...
Formation of the leading edge boundary
Formation of the leading edge boundary

... ‘morphology’, by changing the spatial relationships between cells over time (Slack, 1990). Coupled with cellular growth and fate determination, morphogenetic movements are an integral part of larger developmental programs that direct the final form of tissues and organisms. The biological event of d ...
PowerPoint
PowerPoint

... make tissue culture possible ...
Protist predation can favour cooperation within bacterial species
Protist predation can favour cooperation within bacterial species

... The costs and benefits of cooperation and cheating are dependent on environmental context [1–3]. Here, we investigate how a ubiquitous selection pressure, predation, affects selection for cooperation in the bacterium Pseudomonas aeruginosa, which cooperates by secreting and responding to quorum sens ...
ER and vacuoles: never been closer
ER and vacuoles: never been closer

... in text books suggests that newly formed lytic vacuoles in root-tip cells originate from post-Golgi-derived vesicles (Marty, 1999; De, 2000; Robinson and Rogers, 2000). These vesicles would homotypically fuse to form tubular structures that represent the precursors of vacuoles, the provacuoles. The ...
lncreased Expression of Vacuolar Aquaporin and H+
lncreased Expression of Vacuolar Aquaporin and H+

... Mature motor cells of Mimosa pudica that exhibit large and rapid turgor variations in response to externa1 stimuli are characterized by two distinct types of vacuoles, one containing large amounts of tannins (tannin vacuole) and one without tannins (colloidal or aqueous vacuole). In these highly spe ...
Mapping functional regions of the segment
Mapping functional regions of the segment

... subfamily of proteins that have very similar zinc fingers and which recognize identical or very closely related GC-rich sequences. So far, three other members have been identified: Krox-24 (also known as Egr-1, Zif268, NGFI-A and TIS8 (8-12)), EGR-3 (13) and NGFI-C (14). Although these proteins are ...
Antibodies - blobs.org
Antibodies - blobs.org

... which could do damage to it • One of the ways that it can do this is by releasing lots of chemicals that will destroy anything in their path • However, there’s an even more specific system that has been designed to target particular bugs that might get in – and this is where antibodies come in ...
Imaging ER-to-Golgi transport: towards a
Imaging ER-to-Golgi transport: towards a

... metaphase, the number and intensity of ERES is significantly reduced (ii); in metaphase they are not visible or their number is further reduced (iii). ERES then reappear before cell division (iv,v) and are clearly visible in both daughter cells upon cell division (vi). Scale bar: 10 mm. (B) Double-c ...
Viruses, Bacteria, Protists and Fungi
Viruses, Bacteria, Protists and Fungi

... • First fungi grow hyphae into a food source. • Then digestive chemicals ooze from the hyphae into the food, breaking it down into small substances that can be absorbed by the ...
KINGDOM PROTISTA
KINGDOM PROTISTA

... (swimming type motion) • Pyrenoid- synthesizes starch • Red eyespot • Chloroplasts • Sexual and asexual reproduction • Cell wall ...
PowerPoint
PowerPoint

... make tissue culture possible ...
Slide 1
Slide 1

... • Like amylopectin, glycogen is a polymer of (α1 → 4) -linked subunits of glucose, with (α1 → 6) -linked branches, but glycogen is more extensively branched (on average, every 8 to 12 residues) and more compact than starch • In hepatocytes glycogen is found in large granules, which are themselves c ...
Designing cell lines for viral vaccine production: where do we stand?
Designing cell lines for viral vaccine production: where do we stand?

... become available with such designed cell lines are highlighted. 2 Established cell lines used for vaccine production Many of the cells used today have been developed in the 1960's and 1970's (Table 1). ...
Elevated IL-17 produced by TH17 cells promotes
Elevated IL-17 produced by TH17 cells promotes

... graft model of human MM. Additionally, we have observed that combination of IL-17 and IL-22 significantly inhibited the production of TH1-mediated cytokines, including interferon-␥ (IFN-␥), by healthy donor PBMCs. In conclusion, IL-17–producing TH17 cells play an important role in MM pathobiology an ...
Beginnings of a Good Apoptotic Meal: The Find-Me and
Beginnings of a Good Apoptotic Meal: The Find-Me and

... through phagolysosomal processing (Kinchen et al., 2008; Kinchen and Ravichandran, 2008; Park et al., 2011; Zhou and Yu, 2008). In recent years, several new discoveries have been reported on all of the above aspects of engulfment. This review specifically covers recent discoveries that pertain to fi ...
Activation of the Protein Kinase Akt/PKB by the
Activation of the Protein Kinase Akt/PKB by the

... The maintenance of structural and functional integrity of epithelia requires highly dynamic cellto-cell and cell-to-matrix interactions, which are mediated by adhesion mechanisms involving different types of cell-surface receptors. Among them, cadherins and integrins play a major role, as they are a ...
Endosymbiosis, a Proven Theory or Evolution Myth?
Endosymbiosis, a Proven Theory or Evolution Myth?

... chloroplast division system demonstrates that this form of division is conserved across many lineage systems, including those with secondary chloroplasts. New mitochondria and plastids are formed only through a process similar to binary fission. In some algae, such as Euglena, the plastids can be de ...
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Amitosis

Amitosis (a- + mitosis) is absence of mitosis, the usual form of cell division in the cells of eukaryotes. There are several senses in which eukaryotic cells can be amitotic. One refers to capability for non-mitotic division and the other refers to lack of capability for division. In one sense of the word, which is now mostly obsolete, amitosis is cell division in eukaryotic cells that happens without the usual features of mitosis as seen on microscopy, namely, without nuclear envelope breakdown and without formation of mitotic spindle and condensed chromosomes as far as microscopy can detect. However, most examples of cell division formerly thought to belong to this supposedly ""non-mitotic"" class, such as the division of unicellular eukaryotes, are today recognized as belonging to a class of mitosis called closed mitosis. A spectrum of mitotic activity can be categorized as open, semi-closed, and closed mitosis, depending on the fate of the nuclear envelope. An exception is the division of ciliate macronucleus, which is not mitotic, and the reference to this process as amitosis may be the only legitimate use of the ""non-mitotic division"" sense of the term today. In animals and plants which normally have open mitosis, the microscopic picture described in the 19th century as amitosis most likely corresponded to apoptosis, a process of programmed cell death associated with fragmentation of the nucleus and cytoplasm. Relatedly, even in the late 19th century cytologists mentioned that in larger life forms, amitosis is a ""forerunner of degeneration"".Another sense of amitotic refers to cells of certain tissues that are usually no longer capable of mitosis once the organism has matured into adulthood. In humans this is true of various muscle and nerve tissue types; if the existing ones are damaged, they cannot be replaced with new ones of equal capability. For example, cardiac muscle destroyed by heart attack and nerves destroyed by piercing trauma usually cannot regenerate. In contrast, skin cells are capable of mitosis throughout adulthood; old skin cells that die and slough off are replaced with new ones. Human liver tissue also has a sort of dormant regenerative ability; it is usually not needed or expressed but can be elicited if needed.
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