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The added value of single-cell gene expression
The added value of single-cell gene expression

... cell population studies is due to the large number of cells analyzed, which averages out the large natural variation among individual cells. However, the averaging also eliminates much of the differences in expression contributed by subpopulations. There is also risk that the reference genes selecte ...
Cell Transport
Cell Transport

... cells. The chemical notation for potassium is K+. The proper level of potassium is essential for normal cell function. Among the many functions of potassium in the body are regulation of the heartbeat and the function of the muscles. A seriously abnormal increase in potassium (hyperkalemia) or decre ...
pdf version - Melorheostosis
pdf version - Melorheostosis

... “second hit” found in involved skin tissue • Osteoblasts not tested • Entire gene not sequenced • Second hit gene not MAN1/LEMD3? ...
A study of some endemic viruses of cattle, with particular reference
A study of some endemic viruses of cattle, with particular reference

... be serologically distinct from the 7 U.S. standard serotypes that were available. Another of the isolates was found to cause a slow growing and relatively nonprogressive type of cytopathic effect in only Vero cells, and was consequently harder to study. On the basis of limited studies of this isolat ...
Membrane Transport - Manasquan Public Schools
Membrane Transport - Manasquan Public Schools

... engulfing and bringing them into cell  once surrounded, membrane sac is formed (phagocytic vesicle)  vesicle enters cytoplasm  material in vesicle is digested by enzyme produced by lysosome ...
MICROMORPHOLOGICAL AND HISTOCHEMICAL LOCALISATION STUDIES ON AERIAL PARTS CENTRATHERUM PUNCTATUM
MICROMORPHOLOGICAL AND HISTOCHEMICAL LOCALISATION STUDIES ON AERIAL PARTS CENTRATHERUM PUNCTATUM

... Micromorphological characterization studies were carried out employing standard sectioning and staining methods as per standard texts. Bioactive secondary metabolites specifically, flavonoids and terpenoids were localised histochemically in the aerial parts of plant using specific reagents. The cell ...
Myeloid RelA regulates pulmonary host defense networks and R. Bals*
Myeloid RelA regulates pulmonary host defense networks and R. Bals*

... macrophage colony stimulating factor (Strathmann Biotec, Hamburg, Germany) for 7 days to allow differentiation to macrophages. Stimulation protocols Supernatants from U937- and monocyte-derived macrophages were prepared by incubation of the cells with or without 100 ng?mL-1 ultra pure Escherichia co ...
An Immortalized Myocyte Cell Line, HL-1, Expresses a Functional
An Immortalized Myocyte Cell Line, HL-1, Expresses a Functional

... Although no cloning data is available, the existence of -receptor subtypes has been proposed,25,26 based on in vivo antagonism studies using naltrindole and its analogues, including naltriben (NTB), a putative 2 antagonist, and benzylidenenaltrexone (BNTX), a putative 1 antagonist. DPDPE and DADL ...
High-throughput knockout screen in Schizosaccharomyces pombe
High-throughput knockout screen in Schizosaccharomyces pombe

... third meiosis-specific feature is the protection of centromeric cohesion. Disturbing any of these processes may lead to missegregation of chromosomes and aneuploidy, which is the major cause of miscarriages and mental retardation in humans. The fission yeast Schizosaccharomyces pombe is an excellent ...
Multicellular life cycle of magnetotactic prokaryotes
Multicellular life cycle of magnetotactic prokaryotes

... the daughter-cells to keep the magnetic polarity of the whole organism as well as generating two magnetotactic organisms with the same magnetotactic behavior as the mother-organism. Electron micrographs (Fig. 3) show that cells are arranged in a roughly helical distribution. Based on the helical org ...
A theoretical analysis of the ephaptic feedback mechanism
A theoretical analysis of the ephaptic feedback mechanism

... surface area of the various horizontal cell types (soma plus dendrites) in situ are given in Table S1. Now according to the findings of Yagi and Kaneko [13], the potassium current density of the axon is comparable to that of the soma, whereas the potassium current on the axon terminal is 1/20 that ...
Check Your Knowledge Set 5(Download)
Check Your Knowledge Set 5(Download)

... _____ 18. Which of the following statements is true? a. a cell's structure is closely related to its function b. a cell's structure and function are not related c. structure and function are more closely related in plant cells than in animal cells d. none of the above _____19. What are the three ba ...
video slide - Kealakehe High School
video slide - Kealakehe High School

... • With these rapid changes in metabolism, the egg is said to be activated • Sperm cells do not contribute any materials required for activation. The unfertilized eggs of many species can be artificially activated by the injection of Ca2+ or by a variety of mildly injurious treatments, such as temper ...
Embryonic stem cells form an organized, functional
Embryonic stem cells form an organized, functional

... Culture and genetic modifications of ES cells. Murine J1 ES cells [kindly provided by the laboratory of Jaenisch (31)] were cultured as previously described (32). Briefly, undifferentiated ES cells were cultured in medium containing 103 U/ml leukemia inhibitory factor (Chemicon) in 10-cm2 0.1% gelat ...
Origin of muscle satellite cells in the Xenopus embryo
Origin of muscle satellite cells in the Xenopus embryo

... level (drawings, stage 32, Fig. 1F-K). Cells from the paraxial region populate the central part of the mature somites. Cells from the dorsolateral region accounts for about one third of cells in the somites. They are always found in the ventral region and in 67% cases also in the dorsal region. This ...
A Microbial Avenue to Cell Cycle Control in the Plant
A Microbial Avenue to Cell Cycle Control in the Plant

... and 40 h after the shift to 33°C, allowed a quantitative “cell growth without division” criterion (Nurse et al., 1976), as well as assessment of morphological uniformity of arrest (Hartwell et al., 1970): two classic criteria used to specifically identify cell division cycle mutants. We eliminated fr ...
Checkpoint Responses in Cancer Therapy
Checkpoint Responses in Cancer Therapy

... The cell cycle is tightly regulated by a number of molecular entities that maintain the genetic integrity of the cell and ensure that genetic information is passed correctly to the daughter cells. Starting in the 1980s, extensive research efforts have revealed the existence of evolutionarily conserv ...
Ch 2-3 notes
Ch 2-3 notes

... Materials being expelled from cell ...
Molecular Phylogenetic Analysis
Molecular Phylogenetic Analysis

... prokaryotes at the same time. The question that has baffled scientists for long is: how did this incredible transition from a soup to this complex state take place? The discussion, that still continues, as how life started from the primordial soup is not the emphasis of the present debate, though St ...
Antibiotics - MBBS Students Club | Spreading medical
Antibiotics - MBBS Students Club | Spreading medical

... The synthesis of proteins is known as translation. Translation occurs in the cytoplasm, where the ribosomes are located. Ribosomes are made of a small and large subunit that surround the mRNA. In translation, messenger RNA (mRNA) is decoded to produce a specific polypeptide. This uses an mRNA sequen ...
plant responses to internal and external signals
plant responses to internal and external signals

... abnormally and fall over before harvest. These rice plants were infected with the fungus Gibberella fujikuroi. Treating seedling with extract of the fungus caused abnormally long plants. The Japanese scientists name the chemical signal gibberellin. By the 1950, scientists found that plants, not only ...
A Long Twentieth Century of Review the Cell
A Long Twentieth Century of Review the Cell

... to receive a full genome complement to survive. Chromosomes are present in low copy number, and so special mechanisms are required to ensure their precise replication and partition. The double-helical base-paired structure of DNA provided a deeply satisfying solution to the problem of how replicatio ...
The making of the Fittest: Natural Selection and Adaptation
The making of the Fittest: Natural Selection and Adaptation

... Bechmann, V. Jeney, A. Chora, N. R. Palha, S. Rebelo, A. Henri, Y. Beuzard, and M. P. Soares. “Sickle Hemoglobin Confers Tolerance to Plasmodium Infection.” Cell 145 (2011): 398–409). In summary, many mechanisms of protection have been proposed, but it remains to be established whether any of them a ...
Chapter 39 Plant Responses to Internal and External Signals
Chapter 39 Plant Responses to Internal and External Signals

... abnormally and fall over before harvest. These rice plants were infected with the fungus Gibberella fujikuroi. Treating seedling with extract of the fungus caused abnormally long plants. The Japanese scientists name the chemical signal gibberellin. By the 1950, scientists found that plants, not only ...
PDF - Walter Lab
PDF - Walter Lab

... at late time points. Together, these results show that the formation of FM4-64 foci at the plasma membrane is actin-independent, but that their consumption, namely the depletion of FM4-64 from eisosomes, is actin-dependent17. Imaging of both Abp1–GFP and FM4-64 revealed two populations of actin patc ...
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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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