STUDENTS` MISCONCEPTIONS ABOUT CELL BIOLOGY AND
... corrected or students are made to bring conceptual change. However, before misconception can be corrected, they need to be identified. It is a well known fact that students enter in biology classroom with a lot of misconceptions which are based on their beliefs and observations. In Ethiopia only few ...
... corrected or students are made to bring conceptual change. However, before misconception can be corrected, they need to be identified. It is a well known fact that students enter in biology classroom with a lot of misconceptions which are based on their beliefs and observations. In Ethiopia only few ...
Downloadable Full Text - DSpace@MIT
... massively parallel DNA sequencing (ChIP-seq) and probed the deposition of H3K4me3 and H3K27me3 in male wild-type and male UtxKO ES cells grown under self-renewal or differentiation conditions. Visual inspection of density profiles for H3K27me3 at representative genes revealed that H3K27me3 levels inc ...
... massively parallel DNA sequencing (ChIP-seq) and probed the deposition of H3K4me3 and H3K27me3 in male wild-type and male UtxKO ES cells grown under self-renewal or differentiation conditions. Visual inspection of density profiles for H3K27me3 at representative genes revealed that H3K27me3 levels inc ...
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... During their life cycle, Toxoplasma gondii parasites switch between multi- (merozoite stage) and binate-nuclear replication (tachyzoite stage) [6], with the binary division cycle of the tachyzoite (called endodyogeny, i.e. “inside two are borne”) now a major experimental model for understanding basi ...
... During their life cycle, Toxoplasma gondii parasites switch between multi- (merozoite stage) and binate-nuclear replication (tachyzoite stage) [6], with the binary division cycle of the tachyzoite (called endodyogeny, i.e. “inside two are borne”) now a major experimental model for understanding basi ...
Mitochondria use actin filaments as rails for fast translocation in
... mitochondria moving slowly along microtubules (0.220.05 m m s1), while in our study, mitochondria movement along microtubules was less than our limit of detection (0.3 m m s1). In any case, our in vivo study shows that mitochondria and peroxisomes in Arabidopsis and tobacco move quickly and over ...
... mitochondria moving slowly along microtubules (0.220.05 m m s1), while in our study, mitochondria movement along microtubules was less than our limit of detection (0.3 m m s1). In any case, our in vivo study shows that mitochondria and peroxisomes in Arabidopsis and tobacco move quickly and over ...
A Flow Cytometry Approach to Detect In vivo Chromatin Compaction
... Isolated soybean protoplasts are kept in Cell Permeabilizing Solution on ice and stained by 6ug/ml Acridine Orange solution following Golan’s report [14]. A 488nm laser was used for double stranded DNA detection displaying green fluorescence while 488nm blue argon was used for single stranded DNA de ...
... Isolated soybean protoplasts are kept in Cell Permeabilizing Solution on ice and stained by 6ug/ml Acridine Orange solution following Golan’s report [14]. A 488nm laser was used for double stranded DNA detection displaying green fluorescence while 488nm blue argon was used for single stranded DNA de ...
Cell behaviour and cleft palate in the mutant mouse
... 12-5 days, when they appear as a pair of parallel ridges growing down from either side of the roof of the buccal cavity (Fig. 1 a). That these are ridges can be seen at their posterior end where the knife has cut a glancing transverse section through the tissue. By the 14th day of development (14-5 ...
... 12-5 days, when they appear as a pair of parallel ridges growing down from either side of the roof of the buccal cavity (Fig. 1 a). That these are ridges can be seen at their posterior end where the knife has cut a glancing transverse section through the tissue. By the 14th day of development (14-5 ...
Tomato: a model species for fruit growth and development studies
... mutants which show a significant increase in ethylene production during fruit development, suggests that ABA promotes cell expansion in the pericarp by suppressing ethylene production (Ariizumi et al. 2013). ABA can also be considered as the ripening control factor, because the ABA content is very l ...
... mutants which show a significant increase in ethylene production during fruit development, suggests that ABA promotes cell expansion in the pericarp by suppressing ethylene production (Ariizumi et al. 2013). ABA can also be considered as the ripening control factor, because the ABA content is very l ...
the far c-terminus of tpx2 contributes to spindle morphogenesis
... 3. Pig HAUS6 localizes to the centrosomes in interphase and to the spindle during mitosis ..................................................................................................................... 32 4. Depletion of hTPX2 causes mitotic defects in HeLa cells .............................. ...
... 3. Pig HAUS6 localizes to the centrosomes in interphase and to the spindle during mitosis ..................................................................................................................... 32 4. Depletion of hTPX2 causes mitotic defects in HeLa cells .............................. ...
New immunotherapies targeting the
... lung, and skin [2,7]. This tissue expression plays an important role in regulating immune responses in the periphery [11,12]. In addition to these normal tissues, PD-L1 is often overexpressed on cancers as a mechanism for the cancerous cells to avoid immune surveillance. It is most likely that PD-L1 ...
... lung, and skin [2,7]. This tissue expression plays an important role in regulating immune responses in the periphery [11,12]. In addition to these normal tissues, PD-L1 is often overexpressed on cancers as a mechanism for the cancerous cells to avoid immune surveillance. It is most likely that PD-L1 ...
Review Questions
... Describe the role of prokaryotes in food preservation and disease. Give examples of these bacteria List and explain the five categories of oxygen requirements. Give examples of bacteria for each category. Explain the difference between bacteria that produce superoxide and hydrogen peroxide L ...
... Describe the role of prokaryotes in food preservation and disease. Give examples of these bacteria List and explain the five categories of oxygen requirements. Give examples of bacteria for each category. Explain the difference between bacteria that produce superoxide and hydrogen peroxide L ...
Chloroplast Tubules Visualized in Transplastomic Plants Expressing
... required to understand the developmental regulation of chloroplast tubules. In addition, we found that chloroplast tubules were most abundant in trichome cells of tobacco leaves (Fig. 5). Several tubules emanate from single chloroplasts and many of them end at a near cell membrane. They might be inv ...
... required to understand the developmental regulation of chloroplast tubules. In addition, we found that chloroplast tubules were most abundant in trichome cells of tobacco leaves (Fig. 5). Several tubules emanate from single chloroplasts and many of them end at a near cell membrane. They might be inv ...
Conditional lethality of a yeast strain expressing human RHOA in place of RHO1 .
... under the microscope, we tested an effect of osmotic stabilizer on their growth. We found that the temperature sensitivity of YOC725 is suppressed by the addition of 0.5 M sorbitol. The same condition does not suppress lethality of the rho) deletion mutation. To examine directly cell lysis, we used ...
... under the microscope, we tested an effect of osmotic stabilizer on their growth. We found that the temperature sensitivity of YOC725 is suppressed by the addition of 0.5 M sorbitol. The same condition does not suppress lethality of the rho) deletion mutation. To examine directly cell lysis, we used ...
A role for the Drosophila Bag-of-marbles protein in
... of the points of arrest have provided insight into when the affected gene products begin to act and what biochemical functions they might influence to regulate steps of a differentiation pathway. The Drosophila germ cell lineage The germ cell lineage of Drosophila (Spradling 1993a,b) is an attractiv ...
... of the points of arrest have provided insight into when the affected gene products begin to act and what biochemical functions they might influence to regulate steps of a differentiation pathway. The Drosophila germ cell lineage The germ cell lineage of Drosophila (Spradling 1993a,b) is an attractiv ...
Paper 2
... tem. In GTP␥S-treated tip cells, tubular vacuoles were sometimes the only form seen. When the drug was washed out and hyphae left in GTP␥S-free solution for 45 min before rescoring, tip cells recovered the typical range of control morphologies (Fig. 9). GTP␥S also promoted tubule frequency in the se ...
... tem. In GTP␥S-treated tip cells, tubular vacuoles were sometimes the only form seen. When the drug was washed out and hyphae left in GTP␥S-free solution for 45 min before rescoring, tip cells recovered the typical range of control morphologies (Fig. 9). GTP␥S also promoted tubule frequency in the se ...
dependent endoderm cell fate specification - EvoDevo
... Background: Gastrulation is a uniquely metazoan character, and its genesis was arguably the key step that enabled the remarkable diversification within this clade. The process of gastrulation involves two tightly coupled events during embryogenesis of most metazoans. Morphogenesis produces a distinc ...
... Background: Gastrulation is a uniquely metazoan character, and its genesis was arguably the key step that enabled the remarkable diversification within this clade. The process of gastrulation involves two tightly coupled events during embryogenesis of most metazoans. Morphogenesis produces a distinc ...
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... I have shown that the Rho GTPase Cdc42 controls the spreading of B cells, whereas two other molecules in the same family, Rac1 and Rac2, control homotypic adhesion. Further, I have shown ...
... I have shown that the Rho GTPase Cdc42 controls the spreading of B cells, whereas two other molecules in the same family, Rac1 and Rac2, control homotypic adhesion. Further, I have shown ...
LvNotch specifies secondary mesenchyme - Development
... Fig. 1. Expression of LvNotch constructs. (A) Schematic diagram of LvNotch constructs. (B) Western analysis of protein extracts (30 embryos/ lane) collected from mRNA-injected and uninjected blastula-stage embryos (8-12 hours of development). Lanes: (1) uninjected, (2) LvNactinjected, (3) LvNact∆ANK ...
... Fig. 1. Expression of LvNotch constructs. (A) Schematic diagram of LvNotch constructs. (B) Western analysis of protein extracts (30 embryos/ lane) collected from mRNA-injected and uninjected blastula-stage embryos (8-12 hours of development). Lanes: (1) uninjected, (2) LvNactinjected, (3) LvNact∆ANK ...
Role of E-cadherin and other cell adhesion molecules in survival
... Figure 1 (See opposite page). E-cadherin and its associated molecules in the survival and differentiation of human embryonic stem cells. (A) The molecular structure and the binding sites of E-cadherin and its connection with actin cytoskeleton. The extracellular region of E-cadherin consists of five ...
... Figure 1 (See opposite page). E-cadherin and its associated molecules in the survival and differentiation of human embryonic stem cells. (A) The molecular structure and the binding sites of E-cadherin and its connection with actin cytoskeleton. The extracellular region of E-cadherin consists of five ...
Light Modulates the Biosynthesis and
... carboxysome numbers. The light dependence of carboxysome content was further substantiated by transmission electron microscopy results of wild-type Synechococcus cells (Fig. 2B; Supplemental Fig. S3). The numbers and positioning of carboxysomes in the cell were statistically analyzed based on the co ...
... carboxysome numbers. The light dependence of carboxysome content was further substantiated by transmission electron microscopy results of wild-type Synechococcus cells (Fig. 2B; Supplemental Fig. S3). The numbers and positioning of carboxysomes in the cell were statistically analyzed based on the co ...
the Cell
... • Prokaryotes and eukaryotes differ in how genetic information is allocated to daughter cells upon division • Bacterial and archaeal cells replicate their DNA and divide by binary fission with one molecule of the replicated DNA and the cytoplasm going into each daughter cell • Eukaryotic cells repli ...
... • Prokaryotes and eukaryotes differ in how genetic information is allocated to daughter cells upon division • Bacterial and archaeal cells replicate their DNA and divide by binary fission with one molecule of the replicated DNA and the cytoplasm going into each daughter cell • Eukaryotic cells repli ...
Efficient Procedure and Methods to Determine Critical
... ܴଵ , and ܴଶ , ܴଵ ൏ ݎ൏ ܴଶ . For microscope imaging of ports, the cells are loaded electroporation driven mass transp with a fluorescent stain . We assum me that the molecules that exit the cell will never flow in and thus can be seen as if they m. have been removed from the system The electric fie ...
... ܴଵ , and ܴଶ , ܴଵ ൏ ݎ൏ ܴଶ . For microscope imaging of ports, the cells are loaded electroporation driven mass transp with a fluorescent stain . We assum me that the molecules that exit the cell will never flow in and thus can be seen as if they m. have been removed from the system The electric fie ...
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.