Macromomycin, an Inhibitor of the Membrane Function of Tumor Cells
... freed from the medium and treated with 0.1 M citric acid at 37° for 1 hr. Cell nuclei were stained with crystal violet (0.05%) in 0.1 M citric acid solution and counted in a hemocytometer. Yoshida sarcoma cells were counted directly as intact cells. Dead cells were estimated by staining with nigros ...
... freed from the medium and treated with 0.1 M citric acid at 37° for 1 hr. Cell nuclei were stained with crystal violet (0.05%) in 0.1 M citric acid solution and counted in a hemocytometer. Yoshida sarcoma cells were counted directly as intact cells. Dead cells were estimated by staining with nigros ...
Opposite Polarity of Virus Budding and of Viral Envelope
... protein are basolaterally targeted in MDCK cells (Fuller et al., 1985b ; Roman and Garoff, 1986) . Although SFV and SV are highly related to each other and share large homologies at the DNA and the protein levels it cannot be established from the above mentioned experiments whether the opposite asse ...
... protein are basolaterally targeted in MDCK cells (Fuller et al., 1985b ; Roman and Garoff, 1986) . Although SFV and SV are highly related to each other and share large homologies at the DNA and the protein levels it cannot be established from the above mentioned experiments whether the opposite asse ...
PDF - Oxford Academic - Oxford University Press
... stress trajectories likely resolve the global stress patterns into orthogonal components and are thus likely to be oriented parallel and perpendicular to the growth axis. In this condition, cell walls may be oriented so as to minimize shear stresses, although it is becoming increasingly clear that d ...
... stress trajectories likely resolve the global stress patterns into orthogonal components and are thus likely to be oriented parallel and perpendicular to the growth axis. In this condition, cell walls may be oriented so as to minimize shear stresses, although it is becoming increasingly clear that d ...
The Phospholipid Bilayer - Advanced
... Cytosol and extracellular fluid - the insides and outsides of the cell - are made up of mostly water. In this watery environment, the water loving heads point out towards the water, and the water fearing tails point inwards, and push the water out. The resulting double layer is called a phospholipid ...
... Cytosol and extracellular fluid - the insides and outsides of the cell - are made up of mostly water. In this watery environment, the water loving heads point out towards the water, and the water fearing tails point inwards, and push the water out. The resulting double layer is called a phospholipid ...
Biology
... Often, the simplest way to do that is to record the data in a table and then make a graph. Computers help scientists to gather, analyze, and present large quantities of data. Analyses of data are used to make predictions about complex phenomena. Slide 4 of 31 Copyright Pearson Prentice Hall ...
... Often, the simplest way to do that is to record the data in a table and then make a graph. Computers help scientists to gather, analyze, and present large quantities of data. Analyses of data are used to make predictions about complex phenomena. Slide 4 of 31 Copyright Pearson Prentice Hall ...
Document
... Answer ALL 50 questions by marking your answers on your scantron. Take your time and understand each question before you answer. Good Luck! Please keep this document when finished. Just return your scantron to me. As you leave I will check to see that you are enrolled in this class. To save on paper ...
... Answer ALL 50 questions by marking your answers on your scantron. Take your time and understand each question before you answer. Good Luck! Please keep this document when finished. Just return your scantron to me. As you leave I will check to see that you are enrolled in this class. To save on paper ...
Heterarchy of transcription factors driving basal and luminal
... known motifs, as most matches that were not similar to those found in the HOMER database were in low percentages of peaks (data not shown). Motifs with the highest fold change in abundance in peaks specific to control libraries and around downregulated genes at 24 h were dominated by cell cycle-asso ...
... known motifs, as most matches that were not similar to those found in the HOMER database were in low percentages of peaks (data not shown). Motifs with the highest fold change in abundance in peaks specific to control libraries and around downregulated genes at 24 h were dominated by cell cycle-asso ...
The Plant Cell Wall Integrity Maintenance
... composition. An example of such a mechanism is the plant cell wall integrity (CWI) maintenance mechanism, which exhibits similarities to the one existing in Saccharomyces cerevisiae (Hamann and Denness 2011). The mechanism is monitoring the functional integrity of the plant cell wall and maintains i ...
... composition. An example of such a mechanism is the plant cell wall integrity (CWI) maintenance mechanism, which exhibits similarities to the one existing in Saccharomyces cerevisiae (Hamann and Denness 2011). The mechanism is monitoring the functional integrity of the plant cell wall and maintains i ...
EXERCISE 4 - Lab Procedures
... chlorophyll a to absorb light energy for photosynthesis. This type of chlorophyll is also found in photosynthetic eukaryotes. However, in cyanobacteria the chlorophyll molecules are not located in chloroplasts, as they are in eukaryotes. Instead, they are found on the surface of photosynthetic lamel ...
... chlorophyll a to absorb light energy for photosynthesis. This type of chlorophyll is also found in photosynthetic eukaryotes. However, in cyanobacteria the chlorophyll molecules are not located in chloroplasts, as they are in eukaryotes. Instead, they are found on the surface of photosynthetic lamel ...
Finite element analysis of the pressure
... to study the effect of strain on other types of cells. The model devised by Ellis et al. (1995) uses a positive pressure to deform an elastic substrate that contains a layer of adherent cells, causing a biaxial stretch of the substrate and of the cells. The amount of strain that cells are subject to ...
... to study the effect of strain on other types of cells. The model devised by Ellis et al. (1995) uses a positive pressure to deform an elastic substrate that contains a layer of adherent cells, causing a biaxial stretch of the substrate and of the cells. The amount of strain that cells are subject to ...
Cell Movements in Hydra
... where cells move relative to neighboring tissue by means of self-propulsion, is also apparently exhibited by epithelial cells in certain situations, notably at sites where morphogenetic changes are taking place (e.g., bud and tentacle bases) . Epithelial cells always migrate as sheets of cells, neve ...
... where cells move relative to neighboring tissue by means of self-propulsion, is also apparently exhibited by epithelial cells in certain situations, notably at sites where morphogenetic changes are taking place (e.g., bud and tentacle bases) . Epithelial cells always migrate as sheets of cells, neve ...
Physiological and induced apoptosis in sea urchin larvae
... Fig. 4. Whole mounts of larvae observed by confocal laser microscopy after TdT assay. Three studies that claim that in the course of optical serial sections (45-49-53, of the 107 total sections) of an 8-arms larva with small rudiment (A) and animal development various structures are a competent larv ...
... Fig. 4. Whole mounts of larvae observed by confocal laser microscopy after TdT assay. Three studies that claim that in the course of optical serial sections (45-49-53, of the 107 total sections) of an 8-arms larva with small rudiment (A) and animal development various structures are a competent larv ...
Vp-1 Neurospora crassa circadian clock in chemostat culture
... fitness and aggressiveness. We therefore disrupted the histidine kinase encoding bos1 gene where most of the ImiR mutations map. The ∆bos1 transformants do not sporulate under all conditions tested. Microscopic observations revealed that conidiophores formed normally in the null mutants but failed t ...
... fitness and aggressiveness. We therefore disrupted the histidine kinase encoding bos1 gene where most of the ImiR mutations map. The ∆bos1 transformants do not sporulate under all conditions tested. Microscopic observations revealed that conidiophores formed normally in the null mutants but failed t ...
The Protoplast: Plasma Membrane, Nucleus, and Cytoplasmic
... (DNA), with which a variety of proteins are loosely associated. This molecule, which is called the bacterial chromosome, is localized in a region of the cytoplasm called the nucleoid (Fig. 2.1). In eukaryotic cells, the nuclear DNA is linear and tightly bound to special proteins known as histones, f ...
... (DNA), with which a variety of proteins are loosely associated. This molecule, which is called the bacterial chromosome, is localized in a region of the cytoplasm called the nucleoid (Fig. 2.1). In eukaryotic cells, the nuclear DNA is linear and tightly bound to special proteins known as histones, f ...
Ciliogenesis and the DNA damage response: a stressful relationship
... during DNA replication, or by chromosome segregation defects during mitosis [1]. In order to maintain genomic integrity and to minimise the accumulation of potentially pro-mutagenic lesions within the genome, sophisticated molecular mechanisms have evolved to resolve the numerous daily lesions that ...
... during DNA replication, or by chromosome segregation defects during mitosis [1]. In order to maintain genomic integrity and to minimise the accumulation of potentially pro-mutagenic lesions within the genome, sophisticated molecular mechanisms have evolved to resolve the numerous daily lesions that ...
Intracellular distribution of histone mRNAs in human fibroblasts studied
... mRNA expression is tightly coupled to DNA synthesis, it was of interest to determine whether histone mRNAs are localized near the nucleus. Cells were hybridized with tritiated DNA probes specific for either histone H1, histone H4, actin, or poly(A)+ mRNA and were processed for autoradiography. In ex ...
... mRNA expression is tightly coupled to DNA synthesis, it was of interest to determine whether histone mRNAs are localized near the nucleus. Cells were hybridized with tritiated DNA probes specific for either histone H1, histone H4, actin, or poly(A)+ mRNA and were processed for autoradiography. In ex ...
Electron Microscopic Observations on the Excretion of Cell
... bulged-out membrane. This was possibly due to the coalition of the individual small granules. The maximum dimension of the bulged-out membrane region, as measured from thin sections, was usually less than 1000A and in very few cases between 1000 and 2000 A. Identical pictures were obtained both in m ...
... bulged-out membrane. This was possibly due to the coalition of the individual small granules. The maximum dimension of the bulged-out membrane region, as measured from thin sections, was usually less than 1000A and in very few cases between 1000 and 2000 A. Identical pictures were obtained both in m ...
Ch. 3 - SBCC Biological Sciences Department
... ALS currently has no treatment. Part of the reason is that because neurons do not divide, they cannot be grown long enough in laboratory culture to observe what goes wrong in ALS. A new technology called cellular reprogramming, however, can take a specialized cell type back to a stage at which it ca ...
... ALS currently has no treatment. Part of the reason is that because neurons do not divide, they cannot be grown long enough in laboratory culture to observe what goes wrong in ALS. A new technology called cellular reprogramming, however, can take a specialized cell type back to a stage at which it ca ...
BACTERIA
... A hard, protective case that forms around the DNA of the bacteria cell during unfavorable growth conditions. Spores allow bacteria to survive harsh conditions. (extreme heat, lack of moisture, etc…) ...
... A hard, protective case that forms around the DNA of the bacteria cell during unfavorable growth conditions. Spores allow bacteria to survive harsh conditions. (extreme heat, lack of moisture, etc…) ...
Myofibrillogenesus in Skeletal Muscle Cells
... with one another to form myotubes that contain myofibrils that stain positively for neonatal muscle myosin II.16 Myotubes were not examined in that study to determine how myofibrils formed.16 To test the premyofibril model in mouse myotubes, cells from this cell line was grown in culture to determine w ...
... with one another to form myotubes that contain myofibrils that stain positively for neonatal muscle myosin II.16 Myotubes were not examined in that study to determine how myofibrils formed.16 To test the premyofibril model in mouse myotubes, cells from this cell line was grown in culture to determine w ...
Cell cycle
The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication (replication) that produces two daughter cells. In prokaryotes which lack a cell nucleus, the cell cycle occurs via a process termed binary fission. In cells with a nucleus, as in eukaryotes, the cell cycle can be divided into three periods: interphase, the mitotic (M) phase, and cytokinesis. During interphase, the cell grows, accumulating nutrients needed for mitosis, preparing it for cell division and duplicating its DNA. During the mitotic phase, the cell splits itself into two distinct daughter cells. During the final stage, cytokinesis, the new cell is completely divided. To ensure the proper division of the cell, there are control mechanisms known as cell cycle checkpoints.The cell-division cycle is a vital process by which a single-celled fertilized egg develops into a mature organism, as well as the process by which hair, skin, blood cells, and some internal organs are renewed. After cell division, each of the daughter cells begin the interphase of a new cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of cell division.