Location of Actin, Myosin, and Microtubular Structures during
... Rounded amebae stained with monospecific antibodies against Dictyostelium myosin show a strong bright fluorescence similar to that seen when antibodies against actin are used (Fig. 5A) . Stretched cells, however, present diffuse fluorescence with a typical "mottled" appearance including large unstai ...
... Rounded amebae stained with monospecific antibodies against Dictyostelium myosin show a strong bright fluorescence similar to that seen when antibodies against actin are used (Fig. 5A) . Stretched cells, however, present diffuse fluorescence with a typical "mottled" appearance including large unstai ...
Differential Expression of Four Connexin Genes, Cx-26, Cx
... in the granulosa cells with the respective probes, whereas the expression of Cx-32 and -26 was undetectable. Cx-43 mRNA drastically decreased in the functioning stage of the corpus luteum, whereas Cx-30.3 mRNA increased significantly in the early stage of luteinization in the estrus cycles. These re ...
... in the granulosa cells with the respective probes, whereas the expression of Cx-32 and -26 was undetectable. Cx-43 mRNA drastically decreased in the functioning stage of the corpus luteum, whereas Cx-30.3 mRNA increased significantly in the early stage of luteinization in the estrus cycles. These re ...
7-2 Eukaryotic Cell Structure
... Ribosomes produce proteins by following coded instructions that come from the nucleus. Cells that are active in protein synthesis are often packed with ribosomes. ...
... Ribosomes produce proteins by following coded instructions that come from the nucleus. Cells that are active in protein synthesis are often packed with ribosomes. ...
Michael P. Kowalski1, Vipat Raksakulthai2
... Drug developers are rapidly adopting three-dimensional (3D) cell cultures for drug screening since they provide a more physiologically relevant environment than two-dimensional cell cultures to screen compounds. Spheroids are a simple and well characterized, in vitro tumor model system and when deri ...
... Drug developers are rapidly adopting three-dimensional (3D) cell cultures for drug screening since they provide a more physiologically relevant environment than two-dimensional cell cultures to screen compounds. Spheroids are a simple and well characterized, in vitro tumor model system and when deri ...
Oncogenic potential of a C.elegans cdc25 gene is demonstrated by
... and elt-2, have been identi®ed involved in the normal execution of endodermal fate and hence acting downstream of the maternal E speci®cation genes (Zhu et al., 1997; Fukushige et al., 1998). Both of these genes are expressed zygotically, the transcript of end-1 being detected ®rst within the E blas ...
... and elt-2, have been identi®ed involved in the normal execution of endodermal fate and hence acting downstream of the maternal E speci®cation genes (Zhu et al., 1997; Fukushige et al., 1998). Both of these genes are expressed zygotically, the transcript of end-1 being detected ®rst within the E blas ...
06_Lecture_Presentation_PC
... carried out by the ribosomes • The nucleus contains most of the DNA in a eukaryotic cell • Ribosomes use the information from the DNA to make proteins ...
... carried out by the ribosomes • The nucleus contains most of the DNA in a eukaryotic cell • Ribosomes use the information from the DNA to make proteins ...
thigmo responses in plants and fungi1
... We expected there to be commonalities among the thigmo responses with regard to perception, transduction, and response mechanisms. The evidence for such commonalties is scattered at the present time, but an overview of some repeating themes from relevant experimental studies may be helpful in develo ...
... We expected there to be commonalities among the thigmo responses with regard to perception, transduction, and response mechanisms. The evidence for such commonalties is scattered at the present time, but an overview of some repeating themes from relevant experimental studies may be helpful in develo ...
Of Stem Cells and Gametes: Similarities and Differences
... Abstract: Fusion of a mammalian sperm cell with an oocyte will lead to the formation of a new organism. As this new organism develops, the cells that construct the organism gradually lose developmental competence and become differentiated, a process which is in part mediated via epigenetic modificat ...
... Abstract: Fusion of a mammalian sperm cell with an oocyte will lead to the formation of a new organism. As this new organism develops, the cells that construct the organism gradually lose developmental competence and become differentiated, a process which is in part mediated via epigenetic modificat ...
Reversal of Multicellular-form Development in a
... the transition from this early stage to the yeast phase. Multicellular form-development in wildtype cells can be reversed via budding in cells that are before an unidentified step in development, or by hyphal outgrowth in cells that are beyond that step (Oujezdsky et al., 1973). However, in this stu ...
... the transition from this early stage to the yeast phase. Multicellular form-development in wildtype cells can be reversed via budding in cells that are before an unidentified step in development, or by hyphal outgrowth in cells that are beyond that step (Oujezdsky et al., 1973). However, in this stu ...
Honors Biology
... 3.2.10 A-E Inquiry and Design 4.1.10 A Watersheds and Wetlands 4.3.10 A-C Environmental Health 4.6.10 A-C Ecosystems and their interactions. 4.7.10 A-C Threatened, Endangered, and Extinct Species Shared Activities and Assessments: Activity: Savannah Reading Activity: Watershed Reading Available Equi ...
... 3.2.10 A-E Inquiry and Design 4.1.10 A Watersheds and Wetlands 4.3.10 A-C Environmental Health 4.6.10 A-C Ecosystems and their interactions. 4.7.10 A-C Threatened, Endangered, and Extinct Species Shared Activities and Assessments: Activity: Savannah Reading Activity: Watershed Reading Available Equi ...
Chapter 4 Cells and Their Structures
... cells have a nucleus, where they store their DNA, or genetic material. The nucleus is membrane-bound, which means it is surrounded by a phospholipid membrane. Prokaryotic cells do not have a "membrane-bound" nucleus. Instead, their DNA floats around inside the cell. Here are some other key features ...
... cells have a nucleus, where they store their DNA, or genetic material. The nucleus is membrane-bound, which means it is surrounded by a phospholipid membrane. Prokaryotic cells do not have a "membrane-bound" nucleus. Instead, their DNA floats around inside the cell. Here are some other key features ...
abstract
... several attempts at preparing a cell made of 7 insulating sections separated by 6 ring-shaped metal electrodes. The parts were to be assembled by brazing. Since the attack of brazing material in alkali cells has been suspected many times17, we first exposed a sample of Ag-Cu brazing alloy18 to a 10 ...
... several attempts at preparing a cell made of 7 insulating sections separated by 6 ring-shaped metal electrodes. The parts were to be assembled by brazing. Since the attack of brazing material in alkali cells has been suspected many times17, we first exposed a sample of Ag-Cu brazing alloy18 to a 10 ...
Cells
... • What about food coming in? • They make their own, of course! • Is the cell wall selectively permeable? • No. Substances pass easily through rigid holes in the cell walls. ...
... • What about food coming in? • They make their own, of course! • Is the cell wall selectively permeable? • No. Substances pass easily through rigid holes in the cell walls. ...
Emerging LCDs Based on the Kerr Effect - Prof. Shin
... three distinct advantages: (1) the fabrication process is simple and cost-effective because it does not require any alignment layers, (2) the voltage off-state is optically isotropic, which means that the viewing angle is wide and symmetric, and (3) the switching time is in the sub-millisecond range ...
... three distinct advantages: (1) the fabrication process is simple and cost-effective because it does not require any alignment layers, (2) the voltage off-state is optically isotropic, which means that the viewing angle is wide and symmetric, and (3) the switching time is in the sub-millisecond range ...
Muscle Types
... • Sarcolemma: cell membrane of a muscle cell • Sarcoplasm: cytoplasm of a muscle cell, contains many nuclei and mitochondria ...
... • Sarcolemma: cell membrane of a muscle cell • Sarcoplasm: cytoplasm of a muscle cell, contains many nuclei and mitochondria ...
PDF
... linked by direct interactions [17]. For studies of comparative development at the molecular or genetic level, this concept leads to the notion that the conservation, modification, and/or new use of such interacting groups of genes, rather than individual genes, are essential components of the evolut ...
... linked by direct interactions [17]. For studies of comparative development at the molecular or genetic level, this concept leads to the notion that the conservation, modification, and/or new use of such interacting groups of genes, rather than individual genes, are essential components of the evolut ...
Experiment 2 Microscopy: Simple staining, Gram stain and cell
... The basic principle for all microscopes is that the cell is composed of smaller physical units, the organelles. Definition of the organelles is possible with microscopy, but the function of individual organelles is often beyond the ability of observations through a microscope. We are able to increas ...
... The basic principle for all microscopes is that the cell is composed of smaller physical units, the organelles. Definition of the organelles is possible with microscopy, but the function of individual organelles is often beyond the ability of observations through a microscope. We are able to increas ...
IB Biology Study Guide
... [edit] Block 4B Restriction enzymes are “molecular scissors” used to cut DNA molecules in specific places. Restriction enzymes cut DNA in a staggered manner, which produces pieces with identical, complementary, single-stranded “sticky ends”. These “sticky ends” can pair up with single-stranded ends ...
... [edit] Block 4B Restriction enzymes are “molecular scissors” used to cut DNA molecules in specific places. Restriction enzymes cut DNA in a staggered manner, which produces pieces with identical, complementary, single-stranded “sticky ends”. These “sticky ends” can pair up with single-stranded ends ...
Bacterial Cell Morphogenesis Does Not Require a Preexisting
... shape. It has long been debated whether the formation of new wall material or the transmission of shape from parent to daughter cells requires existing wall material as a template [1–3]. However, rigorous testing of this hypothesis has been problematical because the cell wall is normally an essentia ...
... shape. It has long been debated whether the formation of new wall material or the transmission of shape from parent to daughter cells requires existing wall material as a template [1–3]. However, rigorous testing of this hypothesis has been problematical because the cell wall is normally an essentia ...
Chapter 2: From a Cell to an Organism
... replicated chromosomes move to the middle of the cell. The pairs of sister chromatids line up end-to-end across the center of the cell. How does this happen? Hairlike fibers pull and push the chromosomes to the middle of the cell. Anaphase In the third stage, anaphase, the sister chromatids of each ...
... replicated chromosomes move to the middle of the cell. The pairs of sister chromatids line up end-to-end across the center of the cell. How does this happen? Hairlike fibers pull and push the chromosomes to the middle of the cell. Anaphase In the third stage, anaphase, the sister chromatids of each ...
Rotate into shape: MreB and bacterial
... activity of a wide range of enzymes involved in bacterial growth (White et al, 2010; Kawai et al, 2011). White et al demonstrated that in the Gram-negative bacterium, Caulobacter crescentus, MreB also coordinates the localization of at least some of the cytoplasmic Mur proteins. Notably, the second ...
... activity of a wide range of enzymes involved in bacterial growth (White et al, 2010; Kawai et al, 2011). White et al demonstrated that in the Gram-negative bacterium, Caulobacter crescentus, MreB also coordinates the localization of at least some of the cytoplasmic Mur proteins. Notably, the second ...
The morphologies of breast cancer cell lines in three
... Crucially, our studies have shown that signal transduction pathways in non-malignant cells are integrated in 3D lrECM cultures in ways not observed when cells are cultured as monolayers. Initially, we reported that the expression and activity of b1-integrin and EGFR are reciprocally downregulated in ...
... Crucially, our studies have shown that signal transduction pathways in non-malignant cells are integrated in 3D lrECM cultures in ways not observed when cells are cultured as monolayers. Initially, we reported that the expression and activity of b1-integrin and EGFR are reciprocally downregulated in ...
comparison of p53 expression in hpv(+)
... Purpose :To compare the expression of p53 in HPV(+) and HPV (-) in neoplasia squamous cell of the eyelid and ocular surface. Design: A consecutive retrospective comparative study. Methods: All samples were taken from the paraffin block of squamous cell neoplasia that arouse on the eyelid and ocular ...
... Purpose :To compare the expression of p53 in HPV(+) and HPV (-) in neoplasia squamous cell of the eyelid and ocular surface. Design: A consecutive retrospective comparative study. Methods: All samples were taken from the paraffin block of squamous cell neoplasia that arouse on the eyelid and ocular ...
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.