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Chlamydomonas IFT 88 and Its Mouse Homologue, Polycystic
Chlamydomonas IFT 88 and Its Mouse Homologue, Polycystic

... is integrated randomly throughout the genome and disrupts genes at the site of integration. DNA was isolated from ⵑ400 insertional mutants having behavioral or motility defects and was screened by Southern blotting using a fragment of IFT88 genomic DNA as a probe. One cell line (V79) was identified ...
Analysis of chlorophyll fluorescence reveals stage specific patterns
Analysis of chlorophyll fluorescence reveals stage specific patterns

... During embryonic development cells differentiate by a coordinated process of changes in gene expression that subsequently lead to changes in the types and levels of proteins, as well as alterations in cellular structure. In addition to these changes, the organelles in cells may also differentiate wi ...
Chapter_01
Chapter_01

... ultrastructural organelle consisting of membrane-bound cavities in the cytoplasm of the cell ER function: Transports substances in the cytoplasm Golgi apparatus or Golgi complex are critical for post-translational modifications that help sort, condense, package, and deliver proteins arriving from th ...
Final Draft
Final Draft

... northern Scyphozoa Cyanea capillata (L., 1758). For that purpose, a bioactivity-guided multidimensional liquid chromatographic purification method has been developed. A neurotoxic activity of resulting chromatographic fractions was demonstrated by a bioassay, which based on the mouse neuroblastoma c ...
Enzymatic Evidence for Differences in the
Enzymatic Evidence for Differences in the

... Rh(D), (C), and (E) p01ypeptides,8"~as well as those showing variation in their one- and two-dimensional peptide "maps" after radioiodination and pr~teolysis,"~'~~'~ suggest that these antigens are components of similar but not structurally identical proteins. What, if any, relationship these antige ...
Size, shape, and arrangement of native cellulose fibrils in maize cell
Size, shape, and arrangement of native cellulose fibrils in maize cell

... The PW is the first wall formed when cell divides, and most differentiated cells have secondary walls (SW) that are deposited from the inner side of the PW. It has been reported that the SW deposition may commence before the cessation of cell growth (Gritsch and Murphy 2005; Macadam and Nelson 2002) ...
Mastoparan Alters Subcellular Distribution of
Mastoparan Alters Subcellular Distribution of

... 1998). Importantly, recent genetic studies have revealed that profilin plays critical roles for basic processes of plant development (Ramachandran et al. 2000, McKinney et al. 2001). Profilins from non-plant systems are well known to interact with several classes of proteins that contain long contin ...
Cell Wall, Cytoskeleton, and Cell Expansion in Higher Plants
Cell Wall, Cytoskeleton, and Cell Expansion in Higher Plants

... Moreover, the xxt1xxt2 mutant, which lacked detectable XyG, displayed a relatively mild phenotype, suggesting that the load-bearing function might not only be assumed by XyG–cellulose interactions, but also by interactions between other wall polymers and cellulose (Cavalier et al., 2008; Park and Co ...
PROTEIN DEPHOSPHORYLATION AND THE INTRACELLULAR
PROTEIN DEPHOSPHORYLATION AND THE INTRACELLULAR

Expression of Cell Adhesion Molecule E
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... tissues (16), P-cadherin in placenta (32), and probably others yet to be identified. These cadherins are highly related at the amino acid sequence level and probably perform similar functions in different tissues (45). They seem to be particularly important for cell interactions that occur during em ...
Comparative analysis of amphibian somite
Comparative analysis of amphibian somite

... Hensen's node) has been examined in stereo with the scanning electron microscope (SEM). Meier (1979) has found that this region is organized into tandemly aligned, repeating circular domains (about 180/tm in diameter). As these structures ('somitomeres') are added to the embryonic axis during neurul ...
supplementary information
supplementary information

... concentrations of glucose and becomes de-repressed at lower glucose concentrations8,9. This invertase expression curve allows wildtype cells to follow a strategy opposite that of their opponents (see main text). Competition experiments in this paper explored glucose concentrations in which the wildt ...
Protist Worksheet - hrsbstaff.ednet.ns.ca
Protist Worksheet - hrsbstaff.ednet.ns.ca

... paper. Divide it into three. Draw the basic outline of the euglena and add in the structures that you found. Label them. Indicate the organism’s actual size. Show work. In all three of the organisms that you will be viewing you will encounter contractile vacuoles. What is their purpose? Now let’s mo ...
CTENIDIAL STRUCTURE AND THREE BACTERIAL SYMBIONT
CTENIDIAL STRUCTURE AND THREE BACTERIAL SYMBIONT

... The structure of the ctenidia of the Indo-West Pacific chemosymbiotic lucinid bivalve Anodontia (Euanodontia) ovum was investigated by electron microscopy. Ctenidial filaments are similar in general morphology to those described from other Lucinidae, with a ciliated zone, a short intermediary zone and ...
PDF
PDF

... the central nervous system along its normal pathway, the segmental nerve (n7). To determine at which developmental stage these defects first become apparent, we immunostained wild-type and NetA mutant embryos with mAb22C10. Late stage 12/early stage 13 wild-type embryos show an early stage of v’ch1 ...
ASYMMETRIC CELL DIVISION IN PLANTS
ASYMMETRIC CELL DIVISION IN PLANTS

... exist. Upon spore germination, cell division is asymmetric: It gives rise to a “mother” cell capable of mating-type switching during the next cell cycle, and a “daughter” cell—which originates as a growing bud on the mother cell—that is not able to switch (Figure 2A). In this way, yeast spores gener ...
Heart regeneration
Heart regeneration

... Unlike humans, many amphibia and fish readily regenerate limbs, appendages and internal organs after injury. There is a long history of research on amphibian heart regeneration9; more recently, the zebrafish has proven to be a particularly useful model, given its substantial regenerative capacity an ...
4T, 3T AND 3T1D DRAM CELL DESIGN ON 32 NM
4T, 3T AND 3T1D DRAM CELL DESIGN ON 32 NM

... diode instead of capacitor to store the data value. The absence of capacitor provides significance reduction in power consumption as compared to previous DRAM cell design. In order to write the cell at the BL write line level, it is only required to activate T1 through the WL write line. Hence, the ...
chiasma formation occurs at or following mid-prophase
chiasma formation occurs at or following mid-prophase

... could be obtained. Obtaining 30 analysable cells in diplotene is a monumental task for the following reasons. Subsequent to pachytene of meiosis the bivalents form a typical diplotene configuration. However, this stage must be a relatively short one since it is present in only a few of the ovarioles ...
Fig. - Journal of Cell Science
Fig. - Journal of Cell Science

Culm strenth of a rice brittle mutant
Culm strenth of a rice brittle mutant

... In rice, at least six brittle culm mutants (bc1 to bc6) have been reported. These brittle mutants have been genetically identified in rice and mapped onto genetic map as follows: bc1 on chromosome 3, bc2 on chromosome5, bc3 and bc5 on chromosome 2, bc4 on chromosome 6 (Nagato and Yoshimura, 1998), ...
chapter 9 telomeres and telomerase in adult stem cells and
chapter 9 telomeres and telomerase in adult stem cells and

... shorten with aging seems to vary between men and women and can be influenced by factors considered to accelerate aging and to be a risk of premature death, such as perceived stress, smoking and obesity, all of which have been proposed to negatively impact on telomere length.1‑4 Telomere shortening i ...
Activation of the p75 Neurotrophin Receptor through Conformational
Activation of the p75 Neurotrophin Receptor through Conformational

... of Disulphide-Linked p75NTR Dimers Surface expression of p75NTR was assessed in transfected cells following biotinylation of cell surface proteins, immunoprecipitation, and gel electrophoresis under nonreducing and reducing conditions. This analysis revealed that wild-type p75NTR forms disulphide-li ...
document
document

... 2. Which kind has a kink in it, saturated or unsaturated fats? 3. What are saturated fats saturated with? ...
Phloem loading and unloading - HAL
Phloem loading and unloading - HAL

... companion cell-sieve tube complex itself. The data presented above shows that osmotic gradients may be found between cells connected by plasmodesmata. Now, considering the structure of plasmodesmata (Fig. 2), how can we explain that they would accumulate sucrose in the conducting complex and not hex ...
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Mitosis



Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.
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