General Biology of the Protists The Cell Surface Locomotor Organelles
... Asexual reproduction involves, mitosis, but the process is often somewhat different from the mitosis that occurs in multicellular animals. The nuclear membrane, for example, often persists throughout mitosis, with the microtubular spindle forming within it. In some groups, asexual reproduction invol ...
... Asexual reproduction involves, mitosis, but the process is often somewhat different from the mitosis that occurs in multicellular animals. The nuclear membrane, for example, often persists throughout mitosis, with the microtubular spindle forming within it. In some groups, asexual reproduction invol ...
Establishment and molecular mechanisms of HIV-1 - UvA-DARE
... immunological memory. Resting T cells are the dominant contributor to the long-lived HIV reservoir as latently infected resting T cells can survive for many years. It is however not yet fully understood how this reservoir is maintained. Persistence could be related to the long half-life of these cel ...
... immunological memory. Resting T cells are the dominant contributor to the long-lived HIV reservoir as latently infected resting T cells can survive for many years. It is however not yet fully understood how this reservoir is maintained. Persistence could be related to the long half-life of these cel ...
Nanotechnology is a highly promising and exciting cross
... Colvin VL. The potential environmental impact of engineered nanomaterials. Nature Biotechnol 2003; 21: 1166-1170. Colvin VL. Sustainability for nanotechnology. The Scientist 2004; 18 (16): 26-27. Dowling A. Development of nanotechnologies. Materials Today 2004; 7(Suppl. 1): 30-35. Gilliland FD, Li Y ...
... Colvin VL. The potential environmental impact of engineered nanomaterials. Nature Biotechnol 2003; 21: 1166-1170. Colvin VL. Sustainability for nanotechnology. The Scientist 2004; 18 (16): 26-27. Dowling A. Development of nanotechnologies. Materials Today 2004; 7(Suppl. 1): 30-35. Gilliland FD, Li Y ...
Keratin, Low Molecular Weight Ab-1
... For concentrated antibodies, the antibody must be diluted before using. Use Lab Vision Antibody Diluent (catalog # TA-125-UD). Refer to diluent product instructions for use. Refer to the “General Protocol” instructions. Refer to the “General Protocol” instructions. ...
... For concentrated antibodies, the antibody must be diluted before using. Use Lab Vision Antibody Diluent (catalog # TA-125-UD). Refer to diluent product instructions for use. Refer to the “General Protocol” instructions. Refer to the “General Protocol” instructions. ...
Target Predictions using LINCS Data
... Specifically, the dataset contains experiments profiling the effects of 20,143 small-molecule compounds (including known drugs and pathway-specific tool compounds). In addition, there are 22,119 genetic constructs for over-expressing genes (gain-of-function) or knocking-down (KD) genes (lossof-funct ...
... Specifically, the dataset contains experiments profiling the effects of 20,143 small-molecule compounds (including known drugs and pathway-specific tool compounds). In addition, there are 22,119 genetic constructs for over-expressing genes (gain-of-function) or knocking-down (KD) genes (lossof-funct ...
WWW.BROOKES.AC.UK/GO/RADAR
... cells of Arabidopsis a precise, observation-based statement that contradicts the common text book knowledge has been made by Pyke (2009): “In a leaf, the chloroplasts in the epidermal cells covering the leaf surface are significantly smaller and poorly developed compared with mesophyll chloroplasts, ...
... cells of Arabidopsis a precise, observation-based statement that contradicts the common text book knowledge has been made by Pyke (2009): “In a leaf, the chloroplasts in the epidermal cells covering the leaf surface are significantly smaller and poorly developed compared with mesophyll chloroplasts, ...
Nutrient‑regulated gene expression in eukaryotes
... is just one step in a process that often results in changes in the expression of whole sets of genes required to respond to that metabolite. In higher eukaryotes, the signalling pathway between metabolite recognition and transcriptional control can be complex. Recent evidence from the relatively sim ...
... is just one step in a process that often results in changes in the expression of whole sets of genes required to respond to that metabolite. In higher eukaryotes, the signalling pathway between metabolite recognition and transcriptional control can be complex. Recent evidence from the relatively sim ...
![[PDF]](http://s1.studyres.com/store/data/008788908_1-bd555ffa380d32685e53d16c74ff36d7-300x300.png)
[PDF]
... Lele Yang1,*, Dongsheng Chen1,2,*, Ranhui Duan3,*, Laixin Xia1,2, Jun Wang1, Abrar Qurashi3, Peng Jin3,† and Dahua Chen1,† The Argonaute-family proteins play crucial roles in small-RNA-mediated gene regulation. In Drosophila, previous studies have demonstrated that Piwi, one member of the PIWI subfa ...
... Lele Yang1,*, Dongsheng Chen1,2,*, Ranhui Duan3,*, Laixin Xia1,2, Jun Wang1, Abrar Qurashi3, Peng Jin3,† and Dahua Chen1,† The Argonaute-family proteins play crucial roles in small-RNA-mediated gene regulation. In Drosophila, previous studies have demonstrated that Piwi, one member of the PIWI subfa ...
Nuclear -Tubulin during Acentriolar Plant Mitosis
... Optical sectioning of G2 nuclei confirmed that the ␥-tubulin spots were inside the nuclei, adjacent to the chromatin. However, ␥-tubulin also was found on the nuclear surface, decorating perinuclear microtubules that were focused to the poles, as documented on 12 consecutive sections in Figure 2B. T ...
... Optical sectioning of G2 nuclei confirmed that the ␥-tubulin spots were inside the nuclei, adjacent to the chromatin. However, ␥-tubulin also was found on the nuclear surface, decorating perinuclear microtubules that were focused to the poles, as documented on 12 consecutive sections in Figure 2B. T ...
PDF
... Taken at face value, Figure 1 shows how the epidermal cell files are tilted in relation to the organ axis while the underlying, radially expanded and shortened cell files do not, but are aligned with the organ axis. This implies that the epidermal cell layer is also tilted with respect to the underlyi ...
... Taken at face value, Figure 1 shows how the epidermal cell files are tilted in relation to the organ axis while the underlying, radially expanded and shortened cell files do not, but are aligned with the organ axis. This implies that the epidermal cell layer is also tilted with respect to the underlyi ...
Muscle Cells - Circulation Research
... cardiocytes. Thus, developing cardiac muscle cells are an ideal system in which to examine the expression of cell cycle-regulated genes during development. We chose to examine proliferating cell nuclear antigen (PCNA), a gene expressed at the G1IS phase boundary of the cell cycle. Northern blots of ...
... cardiocytes. Thus, developing cardiac muscle cells are an ideal system in which to examine the expression of cell cycle-regulated genes during development. We chose to examine proliferating cell nuclear antigen (PCNA), a gene expressed at the G1IS phase boundary of the cell cycle. Northern blots of ...
Vacuole metabolites
... herbivore, then the two chemicals can react forming toxic chemicals (e.g. in garlic, alliin and the enzyme alliinase are normally separated but form allicin if the vacuole is broken) useful for defensive purposes. ...
... herbivore, then the two chemicals can react forming toxic chemicals (e.g. in garlic, alliin and the enzyme alliinase are normally separated but form allicin if the vacuole is broken) useful for defensive purposes. ...
Cell Wall Architecture Prerequisite for the Cell Division in the
... in 3% glutaraldehyde for 2 h, were slowly transferred into distilled water. They were rapid-frozen by contact with a copper block that had been precooled with liquid helium (QF-5000; Meiwa Co., Ltd.). The specimens were fractured at — 150°C and etched for 15 min at - 9 5 ° C using a freeze-fracture ...
... in 3% glutaraldehyde for 2 h, were slowly transferred into distilled water. They were rapid-frozen by contact with a copper block that had been precooled with liquid helium (QF-5000; Meiwa Co., Ltd.). The specimens were fractured at — 150°C and etched for 15 min at - 9 5 ° C using a freeze-fracture ...
Chapter 8: Cellular Transport and the Cell Cycle
... live. The states form a country. Some tasks are performed by the country as a whole, while others are performed by states, cities, or individuals. In the same way, your body cells are parts of tissues, organs, organ systems, and the body as a whole. Compare and Contrast Cells in multicellular and un ...
... live. The states form a country. Some tasks are performed by the country as a whole, while others are performed by states, cities, or individuals. In the same way, your body cells are parts of tissues, organs, organ systems, and the body as a whole. Compare and Contrast Cells in multicellular and un ...
Universal Quantifier Derived from AFM Analysis Links Cellular
... measurements were repeated on mica surfaces before and after probing the bacteria samples to ensure minimal contamination of the silicon nitride AFM tip. A typical cell was identified by large scan size and low-resolution MAC (magnetic acoustic control) mode. The AFM tip was then repositioned over th ...
... measurements were repeated on mica surfaces before and after probing the bacteria samples to ensure minimal contamination of the silicon nitride AFM tip. A typical cell was identified by large scan size and low-resolution MAC (magnetic acoustic control) mode. The AFM tip was then repositioned over th ...
Chapter 6 A Tour of the Cell
... C) They are built de novo from cytosol materials. D) They split in two after they are too large. E) The cell synthesizes hydrogen peroxide and encloses it in a membrane. Answer: D Topic: Concept 6.5 Skill: Knowledge/Comprehension ...
... C) They are built de novo from cytosol materials. D) They split in two after they are too large. E) The cell synthesizes hydrogen peroxide and encloses it in a membrane. Answer: D Topic: Concept 6.5 Skill: Knowledge/Comprehension ...
DRH1, a p68-related RNA helicase gene, is required
... lysine 9 (K9) and K27 methylation to homologous sequences in the developing macronucleus. Finally, the IESs are excised by the domesticated transposase Tpb2p (Taverna et al., 2002; Liu et al., 2007; Cheng et al., 2010). The RNA helicase Ema1p is also essential for the histone methylation that leads ...
... lysine 9 (K9) and K27 methylation to homologous sequences in the developing macronucleus. Finally, the IESs are excised by the domesticated transposase Tpb2p (Taverna et al., 2002; Liu et al., 2007; Cheng et al., 2010). The RNA helicase Ema1p is also essential for the histone methylation that leads ...
a complexity drain on cells in the evolution of
... A second rationale is that selection on a multicellular entity favors a reduction in the range of behavioral possibilities in its component cells. To play its proper role, a cell must not only behave appropriately, it must be constrained from behaving inappropriately. One way to eliminate inappropri ...
... A second rationale is that selection on a multicellular entity favors a reduction in the range of behavioral possibilities in its component cells. To play its proper role, a cell must not only behave appropriately, it must be constrained from behaving inappropriately. One way to eliminate inappropri ...
A gain-of-function mutant of Munc18-1 stimulates secretory granule
... has been suggested to be related to their ability to interact with their appropriate syntaxin SNARE, as first observed for Munc18-1 [13,14]. A link between Rabs and SM proteins has been inferred from genetic evidence [15], but direct interactions have been not observed. Recent work has shown that in ...
... has been suggested to be related to their ability to interact with their appropriate syntaxin SNARE, as first observed for Munc18-1 [13,14]. A link between Rabs and SM proteins has been inferred from genetic evidence [15], but direct interactions have been not observed. Recent work has shown that in ...
DISTINCT RECOGNITION PHENOTYPES EXIST FOR T CELL
... subgrouped into three specificity phenotypes based on reactivities to only two species-variant lysozymes, BEL and NEL. T o absolutely confirm that the clones were reactive only with T11 and not with a contaminating impurity, we prepared a synthetic peptide corresponding to the H E L sequence [T 11 ( ...
... subgrouped into three specificity phenotypes based on reactivities to only two species-variant lysozymes, BEL and NEL. T o absolutely confirm that the clones were reactive only with T11 and not with a contaminating impurity, we prepared a synthetic peptide corresponding to the H E L sequence [T 11 ( ...
How much territory can a single E. coli cell control?
... Escherichia coli has astonished investigators with its remarkable metabolic efficiency packed into such a small size. In its 0.5–2 µ length, it packs its genetic material, its metabolic machinery, and an impressive variety of adaptive strategies. It can make a new cell as fast as every 30 min with s ...
... Escherichia coli has astonished investigators with its remarkable metabolic efficiency packed into such a small size. In its 0.5–2 µ length, it packs its genetic material, its metabolic machinery, and an impressive variety of adaptive strategies. It can make a new cell as fast as every 30 min with s ...
The Rice TAL Effector–Dependent Resistance
... oryzae strains deliver members of the large AvrBs3-related effector family into host cells via the bacterial type III secretion system (Yang and White, 2004). AvrBs3-like effectors, also referred to as transcription activator–like (TAL) effectors (Yang et al., 2006), function as transcription factor ...
... oryzae strains deliver members of the large AvrBs3-related effector family into host cells via the bacterial type III secretion system (Yang and White, 2004). AvrBs3-like effectors, also referred to as transcription activator–like (TAL) effectors (Yang et al., 2006), function as transcription factor ...
Chapter 8: Cellular Transport and the Cell Cycle
... live. The states form a country. Some tasks are performed by the country as a whole, while others are performed by states, cities, or individuals. In the same way, your body cells are parts of tissues, organs, organ systems, and the body as a whole. Compare and Contrast Cells in multicellular and un ...
... live. The states form a country. Some tasks are performed by the country as a whole, while others are performed by states, cities, or individuals. In the same way, your body cells are parts of tissues, organs, organ systems, and the body as a whole. Compare and Contrast Cells in multicellular and un ...
9700/04 - StudyGuide.PK
... (b) With reference to Fig. 1.1, explain how the structure of this cell is related to its function in photosynthesis. ...
... (b) With reference to Fig. 1.1, explain how the structure of this cell is related to its function in photosynthesis. ...
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.