Article - Columbia University
... to bias introduced by sectioning or counting methodology (West, 1993). However, we have taken precautions to reduce the possibility that our conclusions could be compromised by such bias. For example, bias may be introduced if the objects being counted are larger than the section width; in this case ...
... to bias introduced by sectioning or counting methodology (West, 1993). However, we have taken precautions to reduce the possibility that our conclusions could be compromised by such bias. For example, bias may be introduced if the objects being counted are larger than the section width; in this case ...
The Cytoskeleton as a Regulator and Target of
... A full understanding of the cytoskeletal basis of cytoplasmic aggregation will require identification and characterization of proteins involved in the signaling pathways that induce cytoskeletal rearrangement and of proteins responsible for bringing about cytoskeletal reorganization and function. It ...
... A full understanding of the cytoskeletal basis of cytoplasmic aggregation will require identification and characterization of proteins involved in the signaling pathways that induce cytoskeletal rearrangement and of proteins responsible for bringing about cytoskeletal reorganization and function. It ...
CD95 ligation and intracellular membrane flow
... with vesicle translocation to the mitochondrial compartment, suggestive of an interplay between both organelles in the sense of an ‘organelle scrambling’. Thus early effects of CD95 activation on intracellular membrane flow may be much more complex than previously thought, but much has still to be l ...
... with vesicle translocation to the mitochondrial compartment, suggestive of an interplay between both organelles in the sense of an ‘organelle scrambling’. Thus early effects of CD95 activation on intracellular membrane flow may be much more complex than previously thought, but much has still to be l ...
processing of defensive pigment in aplysia californica: acquisition
... Immunogold localization showed that there was a The following model is consistent with our observations: statistically significant occurrence of the red algal red algal rhodoplasts are freed from algal cells in the phycobilisome pigment r-phycoerythrin within these foregut and then engulfed by rhodo ...
... Immunogold localization showed that there was a The following model is consistent with our observations: statistically significant occurrence of the red algal red algal rhodoplasts are freed from algal cells in the phycobilisome pigment r-phycoerythrin within these foregut and then engulfed by rhodo ...
Multipotent stem cells from the dorsal aorta
... days the explant was dissociated into a single cell suspension, labeled with DiI as described (Tajbakhsh et al., 1994). After labeling, an aliquot of cells was stained with Hoechst to confirm that more than 95% of the cell population had been labeled. The cell suspension was plated at limiting dilut ...
... days the explant was dissociated into a single cell suspension, labeled with DiI as described (Tajbakhsh et al., 1994). After labeling, an aliquot of cells was stained with Hoechst to confirm that more than 95% of the cell population had been labeled. The cell suspension was plated at limiting dilut ...
Chlorella
... now included colonial growth forms as well as unicells (10 days, Fig. 2a). The number of cells per colony ranged from four to hundreds (Fig. 1c), bracketing and masking the ¯agellate size distribution (Fig. 2a). During a second cycle of ¯agellate growth and Chlorella decline (16 days, Fig. 2a), the ...
... now included colonial growth forms as well as unicells (10 days, Fig. 2a). The number of cells per colony ranged from four to hundreds (Fig. 1c), bracketing and masking the ¯agellate size distribution (Fig. 2a). During a second cycle of ¯agellate growth and Chlorella decline (16 days, Fig. 2a), the ...
********* 1 - Botanik in Bonn
... => Cytoplasmic streaming must reach high velocity for proper mixing of metabolites. ...
... => Cytoplasmic streaming must reach high velocity for proper mixing of metabolites. ...
3. The Sea Urchin
... 3.25-3.33 Examples of tissue-specific gene expression in the sea urchin embryo. Tbe probes described here are representative, but by no means exhaustive. 3.25 (x450) is a whole mount in situ hybridization using an anti-sense BP-10 RNA (courtesy of T. Lepage; Lepage et at., 1992). The boundary of exp ...
... 3.25-3.33 Examples of tissue-specific gene expression in the sea urchin embryo. Tbe probes described here are representative, but by no means exhaustive. 3.25 (x450) is a whole mount in situ hybridization using an anti-sense BP-10 RNA (courtesy of T. Lepage; Lepage et at., 1992). The boundary of exp ...
PDF Full-text
... pure form of the cell wall; (3) isolation and characterization of many proteins tightly associated with (2) preparation in pure form of the cell wall; (3) isolation and characterization of many proteins tightly the cell wall; (4) the resolving ability of 2-DE for separation of some hydrophobic and m ...
... pure form of the cell wall; (3) isolation and characterization of many proteins tightly associated with (2) preparation in pure form of the cell wall; (3) isolation and characterization of many proteins tightly the cell wall; (4) the resolving ability of 2-DE for separation of some hydrophobic and m ...
Document
... haploinsufficiency has been gaining in appreciation as an important influence on human disease ...
... haploinsufficiency has been gaining in appreciation as an important influence on human disease ...
Only a subset of the binary cell fate decisions
... division of each IIa cell to produce two socket cells (Rhyu et al., 1994). The transformation of IIb to IIa has therefore precluded the examination of the role of numb in the asymmetric division of the IIb cell in numb null mutants. Besides the cell-intrinsic mechanism mediated by numb, a cell-extri ...
... division of each IIa cell to produce two socket cells (Rhyu et al., 1994). The transformation of IIb to IIa has therefore precluded the examination of the role of numb in the asymmetric division of the IIb cell in numb null mutants. Besides the cell-intrinsic mechanism mediated by numb, a cell-extri ...
RADIOACTIVE PHOSPHORUS IN STUDIES ON THE
... nucleic acid were each slightly higher than that of DNA extracted from the whole tissue. RNA had a much higher specific activity than DNA in normal liver but these were approximately the same in regenerating liver. The phospholipid of the nucleus was at all times in equilibrium with that of the cyto ...
... nucleic acid were each slightly higher than that of DNA extracted from the whole tissue. RNA had a much higher specific activity than DNA in normal liver but these were approximately the same in regenerating liver. The phospholipid of the nucleus was at all times in equilibrium with that of the cyto ...
Direct interaction of FtsZ and MreB is required for septum synthesis
... defining the MreB–RodZ interaction surface (Van den Ent et al, 2001, 2010). MreB proteins from different species are known to directly interact with the cytoplasmic membrane, though the exact mechanism of binding varies between species (Salje et al, 2011). In E. coli, MreB has an N-terminal amphipath ...
... defining the MreB–RodZ interaction surface (Van den Ent et al, 2001, 2010). MreB proteins from different species are known to directly interact with the cytoplasmic membrane, though the exact mechanism of binding varies between species (Salje et al, 2011). In E. coli, MreB has an N-terminal amphipath ...
feven tigistu-sahle – metabolism of polyunsaturated fatty
... PUFA supplements for the cultures with sufficiently 20:5n-3 and 22:6n-3 but moderately 20:4n-6. Studies on the dynamics of PUFA incorporation into the major GPL classes revealed that the PUFAs in PC are remodeled at first, then those of the PEs and phosphatidylserines (PS). These results demonstrate ...
... PUFA supplements for the cultures with sufficiently 20:5n-3 and 22:6n-3 but moderately 20:4n-6. Studies on the dynamics of PUFA incorporation into the major GPL classes revealed that the PUFAs in PC are remodeled at first, then those of the PEs and phosphatidylserines (PS). These results demonstrate ...
Total Dissolved Solids
... Cell respiration refers to the process of converting the chemical energy of organic molecules into a form immediately usable by organisms. Glucose may be oxidized completely if sufficient oxygen is available according to the following equation: C6H12O6 + 6O2(g) 6 H2O + 6 CO2(g) + energy All organi ...
... Cell respiration refers to the process of converting the chemical energy of organic molecules into a form immediately usable by organisms. Glucose may be oxidized completely if sufficient oxygen is available according to the following equation: C6H12O6 + 6O2(g) 6 H2O + 6 CO2(g) + energy All organi ...
Morphology of single ganglion cells in the glaucomatous
... compared with its appearance in the previous eye examination. After periods of elevated IOP that ranged from 2.5 weeks to 49 weeks, the animals were anesthetized deeply with 15 mg/kg ketamine HC1 intramuscularly, followed by an intravenous injection of 35 mg/kg pentobarbital sodium. The eyes then we ...
... compared with its appearance in the previous eye examination. After periods of elevated IOP that ranged from 2.5 weeks to 49 weeks, the animals were anesthetized deeply with 15 mg/kg ketamine HC1 intramuscularly, followed by an intravenous injection of 35 mg/kg pentobarbital sodium. The eyes then we ...
Protection of Drosophila chromosome ends through minimal
... stages, displaying chromosome end-to-end fusions at high frequency in rapidly dividing cells (Fanti et al., 1998; Cenci et al., 2003; Raffa et al., 2009; Raffa et al., 2010; Gao et al., 2010). In addition – and despite the fact that HOAP, HipHop, Ver and Moi are not conserved outside Drosophilidae a ...
... stages, displaying chromosome end-to-end fusions at high frequency in rapidly dividing cells (Fanti et al., 1998; Cenci et al., 2003; Raffa et al., 2009; Raffa et al., 2010; Gao et al., 2010). In addition – and despite the fact that HOAP, HipHop, Ver and Moi are not conserved outside Drosophilidae a ...
BD Pharmingen™ Transcription Factor Buffer Set
... Likely no, this is the classic problem of understanding fixation and how it interacts with optics of the cytometer. Cells will appear “smaller” by FSC vs SSC, much like if they have been treated with BD FACS™ lysing solution. Voltages on the detectors are to be increased to gate properly. When compa ...
... Likely no, this is the classic problem of understanding fixation and how it interacts with optics of the cytometer. Cells will appear “smaller” by FSC vs SSC, much like if they have been treated with BD FACS™ lysing solution. Voltages on the detectors are to be increased to gate properly. When compa ...
Type I Alveolar Epithelial Cells Mount Innate Immune
... pathogens in the lung. Epithelial cells provide a mechanical barrier to prevent infection, and they can produce chemokines and cytokines that recruit and activate phagocytic cells to eradicate organisms and infected cells (1, 2). The alveolar epithelium consists of two main populations: alveolar typ ...
... pathogens in the lung. Epithelial cells provide a mechanical barrier to prevent infection, and they can produce chemokines and cytokines that recruit and activate phagocytic cells to eradicate organisms and infected cells (1, 2). The alveolar epithelium consists of two main populations: alveolar typ ...
Delamination of neural crest cells requires transient
... injecting Wnt activators into one blastomere of an eight cell stage Xenopus embryo, restricted the extension of the cephalic NC migratory streams compared with that on the control uninjected side of the embryos (Fig. 2H). As in the chick embryos, inhibition of Wnt signalling augmented the extension ...
... injecting Wnt activators into one blastomere of an eight cell stage Xenopus embryo, restricted the extension of the cephalic NC migratory streams compared with that on the control uninjected side of the embryos (Fig. 2H). As in the chick embryos, inhibition of Wnt signalling augmented the extension ...
A parafusin-related Toxoplasma protein in Ca -regulated secretory organelles
... pellicle near the terminal location of the rhoptries and micronemes beneath the plasma membrane (Porchet and Torpier, 1977). Both protozoa have a continuous membrane system, alveolar sacs, which underlie the plasma membrane. In Paramecium these sacs are Ca2 storage compartments, analogous to the sa ...
... pellicle near the terminal location of the rhoptries and micronemes beneath the plasma membrane (Porchet and Torpier, 1977). Both protozoa have a continuous membrane system, alveolar sacs, which underlie the plasma membrane. In Paramecium these sacs are Ca2 storage compartments, analogous to the sa ...
Atrophic Vaginitis
... to it. C. The drop in estrogen causes a decrease in glycogen reducing lactobacilli which leads to an increase in vaginal pH (from acid to alkaline). This often leads to overgrowth of various pathogenic bacteria such as Gardnerella vaginalis, mycoplasma, streptococci, and others (see Figure 23.1). D. ...
... to it. C. The drop in estrogen causes a decrease in glycogen reducing lactobacilli which leads to an increase in vaginal pH (from acid to alkaline). This often leads to overgrowth of various pathogenic bacteria such as Gardnerella vaginalis, mycoplasma, streptococci, and others (see Figure 23.1). D. ...
Slow axonal transport and the genesis of neuronal morphology
... retrogradely, depending on which of the two microtubules has the lesser resistance to movement and which microtubule interfaces with the motor-domain of the dynein molecule. Other motors might also contribute to the movement of microtubules in the axon. The mitotic spindle utilizes a vast array of c ...
... retrogradely, depending on which of the two microtubules has the lesser resistance to movement and which microtubule interfaces with the motor-domain of the dynein molecule. Other motors might also contribute to the movement of microtubules in the axon. The mitotic spindle utilizes a vast array of c ...
Bacteria - TeacherWeb
... Eubacteria are everywhere, on your skin, in the air, in your body, etc. 560,000 bacterium can fit on a pinhead. It’s a good thing that most bacteria are either harmless or helpful to people. Bacteria are involved in oxygen and food production, environmental recycling and cleanup, and health maintena ...
... Eubacteria are everywhere, on your skin, in the air, in your body, etc. 560,000 bacterium can fit on a pinhead. It’s a good thing that most bacteria are either harmless or helpful to people. Bacteria are involved in oxygen and food production, environmental recycling and cleanup, and health maintena ...
MCDB 4650 Class 19 Patterning of the Limb
... If you a produce a chick with cardia bifida by separating the two heart primordia, what experiment would convince you that each of the two heart were complete, functioning hearts rather than two half hearts? a. If they were both beating b. If they both looped c. If they both expressed left and righ ...
... If you a produce a chick with cardia bifida by separating the two heart primordia, what experiment would convince you that each of the two heart were complete, functioning hearts rather than two half hearts? a. If they were both beating b. If they both looped c. If they both expressed left and righ ...
Mitosis
Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.