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RNA-dependent disassembly of nuclear bodies
RNA-dependent disassembly of nuclear bodies

... Nuclear bodies (NBs) are membraneless organelles that play important roles in genome functioning. A specific type of NBs known as interphase prenucleolar bodies (iPNBs) are formed in the nucleoplasm after hypotonic stress from partially disassembled nucleoli. iPNBs are then disassembled, and the nuc ...
2002 Workplan Results
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... growth control is abnormal, for example, the cell continuously grows until a tumor is formed which may damage the neighboring tissue and cause the organism to die. In addition, when a cell should go to apoptosis but does not, its presence may block the function of the neighboring cells and the whole ...
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15 The diagram shows cells from a storage organ of a flowering

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Osmotic, or Water Potential is simply a measure of the tendency for
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WWW.BROOKES.AC.UK/GO/RADAR
WWW.BROOKES.AC.UK/GO/RADAR

... textbooks and primary publications categorically state that the epidermis of higher plants contains chloroplasts only in the guard cells, while pavement and trichome cells have leucoplasts (MacDonald, 2003; Smith, 2005; Bowes and Mauseth, 2008; Solomon et al., 2010; Vaughan, 2013). In the model plan ...
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Batteries: Commercial Voltaic Cells

... Consider two possible ways of utilizing this reaction as an electrical energy source: (i) Hydrogen and oxygen gases are combusted and used to drive a generator, much as coal is currently used in the electric power industry; (ii) hydrogen and oxygen gases are used to generate electricity directly by ...
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Chapter 2: Patterns of Associations

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... micromeres; macromere D' contains most of the teloplasm. At the fourth cleavage (stage 4b, Fig. 1), D' divides into a mesodermal precursor, proteloblast DM (the vegetal daughter of D') and an ectodermal precursor, proteloblast DNOPQ (the animal daughter of D'). DM and DNOPQ cleave further to make te ...
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... functional. Although the initial T1 edge lengths Lα are Gaussian distributed, we find that the change in energy due to a reduction in cell perimeter is quadratic in Lα , resulting in an exponential distribution for energy barriers. Whereas simulations of sheared foams generically generate power-law ...
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Embryonic stem cell differentiation and the analysis of mammalian

... at one end of the 3.5 d.p.c. (days post coitum) blastocyst. Mammalian development entails the regulated proliferation of these cells and allocation of descendants to specific cell lineages following differentiation. Around 4.0 d.p.c., ICM cells lining the blastocoelic cavity differentiate to extraem ...
JetFlex Genomic DNA Purification Kit Handbook (, 0.15 kB)
JetFlex Genomic DNA Purification Kit Handbook (, 0.15 kB)

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Introduction to the cytoskeleton

... responsible for the different cell types and shapes found in the human body. All cells utilized a cytoskeleton, which is a dynamic and adaptable structure. The cytoskeleton consists of 3 main molecular filament systems, as well as a large number of associated proteins. These three are the microfilam ...
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Grx5 Is a Mitochondrial Glutaredoxin Required for the

... chaperones Ssq1 (Hsp70-type) and Jac1 (Hsp40 or J-type; Schilke et al., 1996; Strain et al., 1998; Schilke et al., 1999; Lutz et al., 2001; Voisine et al., 2001), the homologous proteins Isa1 and Isa2 (Jensen and Culotta, 2000; Kaut et al., 2000; Pelzer et al., 2000), and the functionally uncharacte ...
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... entropy was also computed. The difference between the observed and expected entropy estimates the amount of information that the arena frame provides in addition to the room frame. In an analogous manner we computed the information provided by the room frame in addition to the arena frame. For some ...
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``Self-Assisted`` Amoeboid Navigation in Complex Environments

... is chosen to be the new cell front. This directional sensing process takes place every few minutes and has no hysteresis. After determining the new front position, a patch of activation is created on the membrane. This patch determines the membrane area that will be pushed outward to create a pseudo ...
Gene Structure, Promoter Activity, and
Gene Structure, Promoter Activity, and

... BamHI and Not! revealed a fragment of approximately 1.4 kb, which hybridized to a 5' ohigonucleotide of DR-nm23 eDNA. This BamHI/ Not! insert was subcloned into the Bluescript vector for sequence analysis. Such analysis identified six exons separated by five introns (Fig. 2). Exon I contains the 5'- ...
Lecture 014--Cell Transport
Lecture 014--Cell Transport

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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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