- IMSA Digital Commons
... oocyte nucleus, a cytoplasmic flux results in the movement of the spermdeposited pronucleus and centrioles to one pole.10 It has been demonstrated that the location of the sperm-derived centrosomes will always determine the posterior pole of the zygote as possession of a mutant centrosome results in ...
... oocyte nucleus, a cytoplasmic flux results in the movement of the spermdeposited pronucleus and centrioles to one pole.10 It has been demonstrated that the location of the sperm-derived centrosomes will always determine the posterior pole of the zygote as possession of a mutant centrosome results in ...
1) Which of the following correctly lists the levels of organization
... Carbon atoms are the most versatile building blocks of the molecules used by living organisms because _____. a. carbon is the central atom of carbon dioxide, a necessary molecule for photosynthesis b. carbon is the central atom in urea, a molecule used by many living organisms to transport wastes fr ...
... Carbon atoms are the most versatile building blocks of the molecules used by living organisms because _____. a. carbon is the central atom of carbon dioxide, a necessary molecule for photosynthesis b. carbon is the central atom in urea, a molecule used by many living organisms to transport wastes fr ...
Investigating Bacterial Pathogen-host Interaction by Using Scanning
... cultured cells or animal models. The TEM and SEM are particularly useful in studying morphologic changes of cell and tissue structures before and after bacterial infection. Intestinal epithelial cells linked by tight junction forms a physical barrier that protects against invasion of nonpathogenic b ...
... cultured cells or animal models. The TEM and SEM are particularly useful in studying morphologic changes of cell and tissue structures before and after bacterial infection. Intestinal epithelial cells linked by tight junction forms a physical barrier that protects against invasion of nonpathogenic b ...
Sponges and Cnidarians
... The kingdom of animals is informally divided into invertebrate animals, those without a backbone, and vertebrate animals, those with a backbone. Although in general we are most familiar with vertebrate animals, the vast majority of animal species, about 95 percent, are invertebrates. Invertebrates i ...
... The kingdom of animals is informally divided into invertebrate animals, those without a backbone, and vertebrate animals, those with a backbone. Although in general we are most familiar with vertebrate animals, the vast majority of animal species, about 95 percent, are invertebrates. Invertebrates i ...
Why Are Bonsai Leaves Small? - Arnoldia
... Plants, on the other hand, are modular organisms. The basic unit of construction, so to speak, is the leaf, with an associated bud capable of growing as a branch and a section of stem connecting the leaf and bud to the other units of the plant. Similarly the root is really an interconnected network ...
... Plants, on the other hand, are modular organisms. The basic unit of construction, so to speak, is the leaf, with an associated bud capable of growing as a branch and a section of stem connecting the leaf and bud to the other units of the plant. Similarly the root is really an interconnected network ...
Bio211 Lecture 11
... Smooth muscle • walls of organs and blood vessels • skin • involuntary • not striated (it’s smooth!) • single, centrally located nucleus • unbranched ...
... Smooth muscle • walls of organs and blood vessels • skin • involuntary • not striated (it’s smooth!) • single, centrally located nucleus • unbranched ...
Morphogenesis and Differentiation During Animal Development
... In very broad terms, two forces influence the migration and maturation of cells during morphogenesis. One involves cytoplasmic factors found in the egg that direct cells to differentiate into specific cell types. These cytoplasmic proteins and messenger RNA molecules, which are derived solely from t ...
... In very broad terms, two forces influence the migration and maturation of cells during morphogenesis. One involves cytoplasmic factors found in the egg that direct cells to differentiate into specific cell types. These cytoplasmic proteins and messenger RNA molecules, which are derived solely from t ...
cell cycle and cell division
... 10.1CELL CYCLE: The cell cycle is the sequence of events or changes that occur between the formation of cell and its division into daughter cells. It has a nondividing, growing phase called Interphase and dividing phase called mitotic or M-phase. ...
... 10.1CELL CYCLE: The cell cycle is the sequence of events or changes that occur between the formation of cell and its division into daughter cells. It has a nondividing, growing phase called Interphase and dividing phase called mitotic or M-phase. ...
Fermentation of Tomato Juice by Cell Immobilized Lactobacillus
... after the initiation of the fermentation of immobilized cells, and the final cell concentration in the suspension approached the level of 10 7 CFU/mL (Fig. 1). The ultimate viable cell number of the free cell fermentation was around 10 9 CFU/mL, and the cell concentration in the gel beads of the imm ...
... after the initiation of the fermentation of immobilized cells, and the final cell concentration in the suspension approached the level of 10 7 CFU/mL (Fig. 1). The ultimate viable cell number of the free cell fermentation was around 10 9 CFU/mL, and the cell concentration in the gel beads of the imm ...
Low Intensity and Frequency Pulsed
... complete and resilient recovery. Fueling this recent interest is the fact that extremely lowfrequency and low-intensity pulsed electromagnetic fields (PEMFs) have been shown to be innocuous, possibly even beneficial [4], [6]–[7], to normal cell types. On the other hand, certain malignant cell classe ...
... complete and resilient recovery. Fueling this recent interest is the fact that extremely lowfrequency and low-intensity pulsed electromagnetic fields (PEMFs) have been shown to be innocuous, possibly even beneficial [4], [6]–[7], to normal cell types. On the other hand, certain malignant cell classe ...
Phosphorylation Controls CLIMP-63–mediated Anchoring of the
... of its convenient expression in vivo, because more extensively deleted constructs proved to be unstable. The immunofluorescence pattern of CLIMP-63 was described previously (Schweizer et al., 1993a,b; Klopfenstein et al., 1998). Endogenous CLIMP-63 has a discrete punctate pattern typical for the ER, ...
... of its convenient expression in vivo, because more extensively deleted constructs proved to be unstable. The immunofluorescence pattern of CLIMP-63 was described previously (Schweizer et al., 1993a,b; Klopfenstein et al., 1998). Endogenous CLIMP-63 has a discrete punctate pattern typical for the ER, ...
How viruses damage cells: alterations in plasma
... situation: (i) during the toxin-like action of paramyxoviruses when fusing with susceptible cells, and (ii) during an infectious cycle initiated by different viruses in various cell types. The nature of the permeability changes induced during the toxin-like action of viruses, and its modulation by e ...
... situation: (i) during the toxin-like action of paramyxoviruses when fusing with susceptible cells, and (ii) during an infectious cycle initiated by different viruses in various cell types. The nature of the permeability changes induced during the toxin-like action of viruses, and its modulation by e ...
Gls2
... The chimeric pups carrying the modification within their germ line were use to generate the homozygous Gls2 (-/-) mice. After integration of the vector in both alleles, the mice will be mated with mutant Cre mice, which express this recombinase enzyme under control of the synapsin promoter. This wil ...
... The chimeric pups carrying the modification within their germ line were use to generate the homozygous Gls2 (-/-) mice. After integration of the vector in both alleles, the mice will be mated with mutant Cre mice, which express this recombinase enzyme under control of the synapsin promoter. This wil ...
The role of Cdc14 phosphatases in the control of cell division
... (contractile ring) assembly in the medial region of the cell by bridging an interaction with the plasma membrane to CR components [14,15]. In its absence, CR assembly is not restricted to the medial region and CRs form at inappropriate angles and positions [14]. Mid1 binds Clp1 directly through a sm ...
... (contractile ring) assembly in the medial region of the cell by bridging an interaction with the plasma membrane to CR components [14,15]. In its absence, CR assembly is not restricted to the medial region and CRs form at inappropriate angles and positions [14]. Mid1 binds Clp1 directly through a sm ...
Karyotyping
... Separate the Chromosomes – – A hypotonic salt solution is added to the cultured cells which causes the cells to take in water and in effect swell up – This process causes the chromosomes which are tightly paired at the metaphase plate to separate from one another (hence each chromosome can be indivi ...
... Separate the Chromosomes – – A hypotonic salt solution is added to the cultured cells which causes the cells to take in water and in effect swell up – This process causes the chromosomes which are tightly paired at the metaphase plate to separate from one another (hence each chromosome can be indivi ...
No Slide Title
... An experiment is designed to study the mechanism of sucrose uptake by plant cells. Cells are immersed in a sucrose solution, and the pH of the solution is monitored with a pH meter. Samples of the cells are taken at intervals, and the sucrose in the sampled cells is measured. The measurements show t ...
... An experiment is designed to study the mechanism of sucrose uptake by plant cells. Cells are immersed in a sucrose solution, and the pH of the solution is monitored with a pH meter. Samples of the cells are taken at intervals, and the sucrose in the sampled cells is measured. The measurements show t ...
root tips - Oxford Academic
... displayed features typically found in a metabolically active cell. Nuclei were large and spherical, containing fairly disperse chromatin and a prominent nucleolus (Fig. 2A). Nuclei were more or less centrally located in the cells. A relatively dense cytoplasm contained numerous mitochondria and vari ...
... displayed features typically found in a metabolically active cell. Nuclei were large and spherical, containing fairly disperse chromatin and a prominent nucleolus (Fig. 2A). Nuclei were more or less centrally located in the cells. A relatively dense cytoplasm contained numerous mitochondria and vari ...
L-form bacteria, cell walls and the origins of life
... These differences are consistent with the notion that the mechanisms underlying various key cell functions were still in a state of flux when the early ancestors of the archaea and bacteria separated from each other. We have observed L-forms to undergo spontaneous fusion, potentially generating hete ...
... These differences are consistent with the notion that the mechanisms underlying various key cell functions were still in a state of flux when the early ancestors of the archaea and bacteria separated from each other. We have observed L-forms to undergo spontaneous fusion, potentially generating hete ...
Cell-specific Regulation of Human CYPJAJ and CYPJBJ Genes1
... Transcriptional Regulation. The observed cell-specific differ ences in the levels of TCDD-inducible CYP1A1 and CYP1B 1 mRNA are due largely to transcriptional regulation, as indicated by nuclear run-off analysis (Fig. 3 and Table 1). The rate of transcription of CYP1A1 was increased (45-fold) by TCD ...
... Transcriptional Regulation. The observed cell-specific differ ences in the levels of TCDD-inducible CYP1A1 and CYP1B 1 mRNA are due largely to transcriptional regulation, as indicated by nuclear run-off analysis (Fig. 3 and Table 1). The rate of transcription of CYP1A1 was increased (45-fold) by TCD ...
O A RIGINAL
... only circulating antibody are not inhibited by antigen. The results obtained from this in vitro assay correlate well in other respects with observations of delayed hypersensitivity in vitro, in that killed cells, cell extracts, or living cells whose protein synthesizing capacity have been inhibited, ...
... only circulating antibody are not inhibited by antigen. The results obtained from this in vitro assay correlate well in other respects with observations of delayed hypersensitivity in vitro, in that killed cells, cell extracts, or living cells whose protein synthesizing capacity have been inhibited, ...
Actin in plants
... narrows as in-furrowing proceeds - clearly inviting comparison with the contractile ring of animal cytokinesis. No specific mention is made of how the ring of actin relates to the central algal phragmoplast. However, since F-actin is reportedly present in a ring "until the cell is finally divided in ...
... narrows as in-furrowing proceeds - clearly inviting comparison with the contractile ring of animal cytokinesis. No specific mention is made of how the ring of actin relates to the central algal phragmoplast. However, since F-actin is reportedly present in a ring "until the cell is finally divided in ...
Word - New Haven Science
... organisms structured to ensure efficiency and survival? (BIO) 7.2 - Many organisms, including humans, have specialized organ systems that interact with each other to maintain dynamic internal balance. All organisms are composed of one or more cells; each cell carries on lifesustaining functions. Her ...
... organisms structured to ensure efficiency and survival? (BIO) 7.2 - Many organisms, including humans, have specialized organ systems that interact with each other to maintain dynamic internal balance. All organisms are composed of one or more cells; each cell carries on lifesustaining functions. Her ...
PDF
... Fig. 2. Mesoderm induction by a pellet of XTC cells but not by a pellet of XL cells. Isolated Xenopus blastula animal pole regions were pressed against a pellet of XTC or XL cells and allowed to develop for 65 h at 18-22 °C in modified L15 medium containing 10 % foetal calf serum. After fixation and ...
... Fig. 2. Mesoderm induction by a pellet of XTC cells but not by a pellet of XL cells. Isolated Xenopus blastula animal pole regions were pressed against a pellet of XTC or XL cells and allowed to develop for 65 h at 18-22 °C in modified L15 medium containing 10 % foetal calf serum. After fixation and ...
Cell culture
Cell culture is the process by which cells are grown under controlled conditions, generally outside of their natural environment. In practice, the term ""cell culture"" now refers to the culturing of cells derived from multicellular eukaryotes, especially animal cells, in contrast with other types of culture that also grow cells, such as plant tissue culture, fungal culture, and microbiological culture (of microbes). The historical development and methods of cell culture are closely interrelated to those of tissue culture and organ culture. Viral culture is also related, with cells as hosts for the viruses. The laboratory technique of maintaining live cell lines (a population of cells descended from a single cell and containing the same genetic makeup) separated from their original tissue source became more robust in the middle 20th century.