Bio Frames - Lee County School District
... focuses on how teachers can help students develop a more thorough understanding of informa on associated with key topics and main ideas. The Biology Frames can be used in many ways. Some instructors using the Framing Rou ne in their classrooms with students, will already have the model frame complet ...
... focuses on how teachers can help students develop a more thorough understanding of informa on associated with key topics and main ideas. The Biology Frames can be used in many ways. Some instructors using the Framing Rou ne in their classrooms with students, will already have the model frame complet ...
Molecular Regulation of Vascular Cambium Identity and Activity
... their animal counterparts are reservoirs of cells that can both produce new cells for the generation of new tissues and organs, and self-maintain indeterminately via asymmetric cell division. The asymmetric division of an initial cell generates two daughter cells; one remains as an undifferentiated ...
... their animal counterparts are reservoirs of cells that can both produce new cells for the generation of new tissues and organs, and self-maintain indeterminately via asymmetric cell division. The asymmetric division of an initial cell generates two daughter cells; one remains as an undifferentiated ...
CHARACTERIZATION OF MOLECULES SHOWING
... inhibition increased the RNA expression level of PRINS. Gene-specific silencing of PRINS by RNA interference revealed that down-regulation of PRINS impairs cell viability after serum starvation but not under normal serum conditions, suggesting that PRINS functions as a noncoding regulatory RNA, play ...
... inhibition increased the RNA expression level of PRINS. Gene-specific silencing of PRINS by RNA interference revealed that down-regulation of PRINS impairs cell viability after serum starvation but not under normal serum conditions, suggesting that PRINS functions as a noncoding regulatory RNA, play ...
Amino Acid Analogs, and Nucleases on the Synthesis of DNA in
... within a short time after contact with the cells in culture medium, caused an increase in the number of cells able to incorporate thymidine. After 3 hours of treatment both DNase II and RNase resulted in decreases in DNA synthesis. The results are discussed with regard to the hypothesis that RNA may ...
... within a short time after contact with the cells in culture medium, caused an increase in the number of cells able to incorporate thymidine. After 3 hours of treatment both DNase II and RNase resulted in decreases in DNA synthesis. The results are discussed with regard to the hypothesis that RNA may ...
Message in a bottle: small signalling peptide
... small signalling peptides. First, as receptors commonly form complexes, it may be that interacting proteins are able to alter the conformation of the receptor, allowing a single receptor protein to perceive multiple ligands and to activate multiple, distinct signalling cascades based on alternative ...
... small signalling peptides. First, as receptors commonly form complexes, it may be that interacting proteins are able to alter the conformation of the receptor, allowing a single receptor protein to perceive multiple ligands and to activate multiple, distinct signalling cascades based on alternative ...
Mechanistic investigation into the actions of taurine on beta cells
... Taurine (2-aminoethanesulphonic acid) is a semi-essential amino acid, which is not incorporated into proteins. In mammalian tissues, taurine is ubiquitous and is the most abundant free amino acid in the heart, retina, skeletal muscle, brain, and leukocytes, exhibiting multiple functions and tissue-p ...
... Taurine (2-aminoethanesulphonic acid) is a semi-essential amino acid, which is not incorporated into proteins. In mammalian tissues, taurine is ubiquitous and is the most abundant free amino acid in the heart, retina, skeletal muscle, brain, and leukocytes, exhibiting multiple functions and tissue-p ...
C. elegans MCM-4 is a general DNA replication and
... 2005; Lilly and Duronio, 2005). In addition, work from various researchers has demonstrated that conserved molecular modules regulate S-phase entry and DNA replication checkpoint responses in C. elegans (Kipreos, 2005; O'Neil and Rose, 2006; van den Heuvel, 2005). Several studies illustrate the pote ...
... 2005; Lilly and Duronio, 2005). In addition, work from various researchers has demonstrated that conserved molecular modules regulate S-phase entry and DNA replication checkpoint responses in C. elegans (Kipreos, 2005; O'Neil and Rose, 2006; van den Heuvel, 2005). Several studies illustrate the pote ...
PDF
... family of tetrapod-restricted transcriptional factors that coevolved with ERVs (Emerson and Thomas, 2009; Friedman et al., 1996; Thomas and Schneider, 2011; Urrutia, 2003). KAP1 has previously been demonstrated to maintain ERVs in a silent state in embryonic stem (ES) cells via the histone methyltra ...
... family of tetrapod-restricted transcriptional factors that coevolved with ERVs (Emerson and Thomas, 2009; Friedman et al., 1996; Thomas and Schneider, 2011; Urrutia, 2003). KAP1 has previously been demonstrated to maintain ERVs in a silent state in embryonic stem (ES) cells via the histone methyltra ...
Asymmetries in Cell Division, Cell Size, and Furrowing in the
... The gray crescent is also observed in some other amphibian species such as Rana pipiens. Although the position of the SEP, which can be simply visualized due to the pigment concentration, is a relatively good indicator of the prospective dorsal– ventral axis, it is not absolutely reliable (Black and ...
... The gray crescent is also observed in some other amphibian species such as Rana pipiens. Although the position of the SEP, which can be simply visualized due to the pigment concentration, is a relatively good indicator of the prospective dorsal– ventral axis, it is not absolutely reliable (Black and ...
Lessons from a gene regulatory network: echinoderm
... electron micrograph of the late embryonic skeleton (Dendraster excentricus), with all cellular material removed. ...
... electron micrograph of the late embryonic skeleton (Dendraster excentricus), with all cellular material removed. ...
Biology: Concepts and Connections, 6e (Campbell)
... 3) Membrane phospholipids A) have hydrophobic heads that face the center of the membrane and are shielded from water. B) have hydrophilic tails that face outward and are exposed to water. C) often have "kinks" in their tails caused by the presence of a double bond between carbons. D) remain fluid be ...
... 3) Membrane phospholipids A) have hydrophobic heads that face the center of the membrane and are shielded from water. B) have hydrophilic tails that face outward and are exposed to water. C) often have "kinks" in their tails caused by the presence of a double bond between carbons. D) remain fluid be ...
DCE
... • Applications identify resources by name, without needing to know where the resources are located • DCE cells can also participate in a worldwide directory service using the DCE Global Directory (GDS), which is based on the X.500 standard, or the Internet-system Domain Name Service (DNS) ...
... • Applications identify resources by name, without needing to know where the resources are located • DCE cells can also participate in a worldwide directory service using the DCE Global Directory (GDS), which is based on the X.500 standard, or the Internet-system Domain Name Service (DNS) ...
Cell movements driving neuruiation in avian embryos
... microsurgical removal of tissues lateral to the neural plate, resulted in a delay, severe inhibition or complete failure of bending of the neural plate (Morriss-Kay and Crutch, 1982; Morriss-Kay etal. 1986; Morriss-Kay and Tuckett, 1989; Anderson and Meier, 1982; Schoenwolf and Fisher, 1983; Schoenw ...
... microsurgical removal of tissues lateral to the neural plate, resulted in a delay, severe inhibition or complete failure of bending of the neural plate (Morriss-Kay and Crutch, 1982; Morriss-Kay etal. 1986; Morriss-Kay and Tuckett, 1989; Anderson and Meier, 1982; Schoenwolf and Fisher, 1983; Schoenw ...
Sugar-Regulated Expression of a Putative
... cells, no significant effect was observed with Suc and palatinose, and the only slight increase in GUS activity was obtained with Glc (Fig. 5C). Sugars did not affect GUS activity in cells expressing the constitutive p35S-GUS construct (Fig. 5A). To check the effect of Glc on 2.4VvHT1-GUS transcript ...
... cells, no significant effect was observed with Suc and palatinose, and the only slight increase in GUS activity was obtained with Glc (Fig. 5C). Sugars did not affect GUS activity in cells expressing the constitutive p35S-GUS construct (Fig. 5A). To check the effect of Glc on 2.4VvHT1-GUS transcript ...
Cancer Association of South Africa (CANSA) Fact Sheet on
... A bone marrow biopsy is usually done just after the aspiration. A small piece of bone and marrow is removed with a needle that is twisted as it is pushed down into the bone. The biopsy may also cause some brief pain. Once the biopsy is done, pressure will be applied to the site to help prevent blee ...
... A bone marrow biopsy is usually done just after the aspiration. A small piece of bone and marrow is removed with a needle that is twisted as it is pushed down into the bone. The biopsy may also cause some brief pain. Once the biopsy is done, pressure will be applied to the site to help prevent blee ...
Manipulating Plant Histone Genes to Improve Agrobacterium
... no vector “backbone” integration, and predictable and stable transgene expression) forms the basis of next-generation transformation technologies. Improving Agrobacterium-mediated transformation frequency ...
... no vector “backbone” integration, and predictable and stable transgene expression) forms the basis of next-generation transformation technologies. Improving Agrobacterium-mediated transformation frequency ...
BioWire_Progress_Report_Week_One_Rev_1
... Use photolithography techniques to create a “wire” of bacteria. Use cell-to-cell signaling and transcriptional regulation to create a chemical “pulse” that travels down the length of the wire. ...
... Use photolithography techniques to create a “wire” of bacteria. Use cell-to-cell signaling and transcriptional regulation to create a chemical “pulse” that travels down the length of the wire. ...
PDF with detailed project information
... should therefore be an evolutionary dead end. However, accumulating evidence for at least occasional biparental transmission (or paternal leakage) provides opportunities for sporadic sexual recombination events between organellar genomes. Those could significantly slow down Muller’s ratchet, but the ...
... should therefore be an evolutionary dead end. However, accumulating evidence for at least occasional biparental transmission (or paternal leakage) provides opportunities for sporadic sexual recombination events between organellar genomes. Those could significantly slow down Muller’s ratchet, but the ...
Diapositiva 1
... To validate our TMA data, we compared the immunohistochemical staining results of p16 protein on whole tissue sections of 10 cases found completely concordance. Full section ...
... To validate our TMA data, we compared the immunohistochemical staining results of p16 protein on whole tissue sections of 10 cases found completely concordance. Full section ...
Myeloma-Specific Multiple Peptides Able to Generate Cytotoxic T
... multiple myeloma (11, 12). High amounts of immunoglobulin produced by plasma cells evoke estrogen receptor (ER) stress, which in turn activates IRE1-mediated XBP1 expression and subsequently mRNA splicing during plasma cell differentiation (10, 13, 14). As a consequence, the relative mRNA expression ...
... multiple myeloma (11, 12). High amounts of immunoglobulin produced by plasma cells evoke estrogen receptor (ER) stress, which in turn activates IRE1-mediated XBP1 expression and subsequently mRNA splicing during plasma cell differentiation (10, 13, 14). As a consequence, the relative mRNA expression ...
T Cell Proliferation Induced by Autologous Non
... 0.25% Triton, and stained with polyclonal rabbit anti-PARP p89 Ab (antiPARP-85 fragment; Promega, Madison, WI), followed by secondary fluorescein-conjugated anti-rabbit Ig Ab (DAKO, Carpinteria, CA) (30). Cells were washed, and 20 g/ml PI were added to the samples 20 min before ...
... 0.25% Triton, and stained with polyclonal rabbit anti-PARP p89 Ab (antiPARP-85 fragment; Promega, Madison, WI), followed by secondary fluorescein-conjugated anti-rabbit Ig Ab (DAKO, Carpinteria, CA) (30). Cells were washed, and 20 g/ml PI were added to the samples 20 min before ...
Electron Microscope Observations of Brucella abortus
... therefore that the known differences between slant-grown and cell-grown brucellas, if they involve changes in surface structures, are associated with modifications which are not detectable with the electron microscope. The changes in serum sensitivity in brucellas may be more closely related to diff ...
... therefore that the known differences between slant-grown and cell-grown brucellas, if they involve changes in surface structures, are associated with modifications which are not detectable with the electron microscope. The changes in serum sensitivity in brucellas may be more closely related to diff ...
Emerging biological roles of Cl− intracellular channel proteins
... Rho-regulated cortical actin dynamics as well as vesicular trafficking and integrin recycling, the latter of which are under the control of Rab GTPases. In this Commentary, we discuss the emerging roles of CLIC proteins in these processes and the lessons learned from genetargeting studies. We also h ...
... Rho-regulated cortical actin dynamics as well as vesicular trafficking and integrin recycling, the latter of which are under the control of Rab GTPases. In this Commentary, we discuss the emerging roles of CLIC proteins in these processes and the lessons learned from genetargeting studies. We also h ...
KLF4 N-Terminal Variance Modulates Induced Reprogramming to
... As the quintessential reprogramming model, OCT3/4, SOX2, KLF4, and c-MYC re-wire somatic cells to achieve induced pluripotency. Yet, subtle differences in methodology confound comparative studies of reprogramming mechanisms. Employing transposons, we systematically assessed cellular and molecular ha ...
... As the quintessential reprogramming model, OCT3/4, SOX2, KLF4, and c-MYC re-wire somatic cells to achieve induced pluripotency. Yet, subtle differences in methodology confound comparative studies of reprogramming mechanisms. Employing transposons, we systematically assessed cellular and molecular ha ...
Cellular differentiation
In developmental biology, cellular differentiation isa cell changes from one cell type to another. Most commonly this is a less specialized type becoming a more specialized type, such as during cell growth. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover. Some differentiation occurs in response to antigen exposure. Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics. With a few exceptions, cellular differentiation almost never involves a change in the DNA sequence itself. Thus, different cells can have very different physical characteristics despite having the same genome.A cell that can differentiate into all cell types of the adult organism is known as pluripotent. Such cells are called embryonic stem cells in animals and meristematic cells in higher plants. A cell that can differentiate into all cell types, including the placental tissue, is known as totipotent. In mammals, only the zygote and subsequent blastomeres are totipotent, while in plants many differentiated cells can become totipotent with simple laboratory techniques. In cytopathology, the level of cellular differentiation is used as a measure of cancer progression. ""Grade"" is a marker of how differentiated a cell in a tumor is.