• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Gene Section CDH1 (cadherin 1, type 1, E-cadherin (epithelial))
Gene Section CDH1 (cadherin 1, type 1, E-cadherin (epithelial))

... are well known to play important roles in cell recognition and cell sorting during development. However, they continue to be expressed at high levels in virtually all solid tissues. There are many members of the classic cadherin family (which is a subset of the larger cadherin superfamily), but E-ca ...
Transport Across Membranes
Transport Across Membranes

... Cells and Osmosis. The concentration of the solution that surrounds a cell will affect the state of the cell, due to osmosis. There are three possible concentrations of solution to consider: ...
Year 10 Biology GCSE Objectives
Year 10 Biology GCSE Objectives

... I can relate levels of organisation to familiar organ systems in order to give examples of cells, tissues, and organs. I can explain why the cells of multicellular organisms are organised into tissues, organs, and organ systems. I can suggest the function of glandular, epithelial, and muscular tissu ...
Msx genes define a population of mural cell - HAL
Msx genes define a population of mural cell - HAL

... 15 seconds at 95°C; and 1 minute at 60°C for 40 cycles. For each gene studied, multiple RNA samples were analyzed, n=5 for simple Msx1 and simple Msx2 mutants, n=4 for Sm22Cre Msx1/2 mutants, each in duplicate. Data are expressed as fold changes (2-(ctgene-ctref)) using Msx1+/-; Msx2lox/+; a-Sm22c ...
Neurogenesis in Postnatal Mouse Dorsal Root Ganglia
Neurogenesis in Postnatal Mouse Dorsal Root Ganglia

... and also experience increases in NGF following axotomy (35). Second, NGF- and serum-containing media are commonly used for DRG culture (7), and we sought to replicate these conditions. BrdU was also added to the culture medium to identify proliferating cells. In these experiments, primary DRG cultur ...
Localization of Collagenase at the Basal Plasma Membrane of a
Localization of Collagenase at the Basal Plasma Membrane of a

... tation were concentrated by the addition of solid ammonium sulfate to Cells were washed twice in culture medium and fixed in 0.1% glutaral60% saturation and dialyzed against the above buffer. Aliquots of pellets dehyde/PBS for 40 min at room temperature. Aliquot portions (10 M') and supernatants wer ...
Osmosis and Diffusion Passive Transport
Osmosis and Diffusion Passive Transport

... Osmosis and Diffusion • In the real world………. – In humans, osmosis occurs in the kidneys to recover the water form waste materials of the body. The kidneys regulate the concentration of water in the blood plasma. ...
Derivation of naïve human embryonic stem cells
Derivation of naïve human embryonic stem cells

... mESC (Fig. S1I). Unlike H1-2iF, Elf1-3iL could be stabilized without FGF2. Elf1 could be maintained as naïve indefinitely in 3iL and 2iL and as such has been grown stably for more than 60 passages. However, when FGF is not present there is an increased background of differentiated cells. There was n ...
Eyes Absent, a key repressor of polar cell fate during
Eyes Absent, a key repressor of polar cell fate during

... CI is a transcription factor that transmits the HH signal from the cytoplasm to the nucleus, where it is primarily responsible ...
Role for Rab7 in maturation of late autophagic vacuoles
Role for Rab7 in maturation of late autophagic vacuoles

... events with vesicles originating from the endo/lysosomal compartment. The SKD1 AAA ATPase was recently shown to be necessary for autophagosome maturation (Nara et al., 2002). Early autophagosomes accumulated in cells expressing the dominant negative forms of SKD1, indicating that fewer fusion events ...
Salt-Induced Remodeling of Spatially Restricted
Salt-Induced Remodeling of Spatially Restricted

... Although the operation and physiological relevance of endocytosis have been demonstrated unequivocally in plants, the molecular components participating in the process are less well characterized than in animal systems. Simple, well-defined tissue organization makes the Arabidopsis thaliana root an i ...
appearance and function of endogenous peroxidase in fetal rat thyroid
appearance and function of endogenous peroxidase in fetal rat thyroid

... Fine Structure and Cytochemistry 38 pregnant Sprague-Dawley rats, ranging in gestation from the 15th through the 20th day, were used in this study. (The 1st day of gestation was determined by the presence of a vaginal plug .) For electron microscopy and cytochemistry, 82 embryos from 15 rats were vi ...
Cloning, Expression in Escherichia coli, and Characterization of
Cloning, Expression in Escherichia coli, and Characterization of

Brain Songs
Brain Songs

... The axon down from the nucleous And the nucleus in the cell body And the cell body near the dendrites And the dendrites on the neuron And the neuron in the animal And the animal on the earth And the impulse travels all around all around The impulse travels all around And on the axon (And on the axon ...
Physiological and Morphological Characteristics of
Physiological and Morphological Characteristics of

... phase cells during the transition from shaking to standing were investigated. Shaken stationary phase cells were less viable and more sensitive to ultraviolet irradiation and heat than standing stationary phase cells. During pre-conditioning the small, non-flagellated cells present in shaken station ...
BNP & NTPro-BNP
BNP & NTPro-BNP

... ◦ Some proteins contain more than one PDZ region ◦ PDZ domains have been found in over 250 proteins across a wide range of organisms from Drasophila to Humans ◦ PDZs bind to complementary sequences at C-termini ◦ Implicated in a wide range of cellular processes ◦ – therefore an extremely useful drug ...
One Cell - The Prostate Net
One Cell - The Prostate Net

... Good Neighborhoods ...
Studies on host-virus interaction for viral hemorrhagic septicemia
Studies on host-virus interaction for viral hemorrhagic septicemia

... promoter in Epithelioma Papulosum Cyprini (EPC) cells. Interestingly, real-time PCR iii ...
Phosphorylation of Bni4 by MAP kinases contributes to septum
Phosphorylation of Bni4 by MAP kinases contributes to septum

... of the septin ring, a very conspicuous structure localized at the ...
Mitochondria use actin filaments as rails for fast translocation in
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 ...
Biology I – 9 weeks review
Biology I – 9 weeks review

... http://brainly.com/question/123047 4. List the 3 stimulus responses ____________________________________________________________ 5. Watch the following video. https://www.brainpop.com/science/scientificinquiry/scientificmethod/ List the steps to the scientific method: _______________________________ ...
Formins: Linking Cytoskeleton and Endomembranes in Plant Cells
Formins: Linking Cytoskeleton and Endomembranes in Plant Cells

... thin layer of cortical cytoplasm between the plasmalemma and tonoplast, close to each other and in an intimate contact with the cortical cytoskeleton. Common to all eukaryotes, the endomembranes are interconnected either directly or through an intensive membrane turnover (recently reviewed in [1,2]) ...
The cardiac pacemaker current Journal of Molecular and Cellular
The cardiac pacemaker current Journal of Molecular and Cellular

... start to display foci of spontaneous contraction generated by early cardiomyocytes [47–49]. The If current has been found both in human and in mouse ESC-derived cardiomyocytes and its direct involvement in the generation and modulation of rate has been assessed by applying specific If inhibitors [48, ...
Evolutionarily conserved cytogenetic changes in
Evolutionarily conserved cytogenetic changes in

... nonrandom cytogenetic abnormalities in human leukemia and lymphoma was recognized over 40 years ago, but the mechanisms of genome reorganization remain incompletely understood. The development of molecular cytogenetics, using fluorescence in situ hybridization (FISH) technology, has played a signifi ...
J Exp Med. 2009 Aug 31;206(9):1899-911. Epub 2009 Aug 3.
J Exp Med. 2009 Aug 31;206(9):1899-911. Epub 2009 Aug 3.

... Many cell types also appear to respond to the cytosolic presence of DNA (Ishii et al., 2006; Stetson and Medzhitov, 2006a). The cytosolic response to DNA does not require MAVS, but does require TBK1 and IRF3 in most cell types (Ishii et al., 2006; Stetson and Medzhitov, 2006a; Sun et al., 2006). Rec ...
< 1 ... 206 207 208 209 210 211 212 213 214 ... 1231 >

Amitosis

Amitosis (a- + mitosis) is absence of mitosis, the usual form of cell division in the cells of eukaryotes. There are several senses in which eukaryotic cells can be amitotic. One refers to capability for non-mitotic division and the other refers to lack of capability for division. In one sense of the word, which is now mostly obsolete, amitosis is cell division in eukaryotic cells that happens without the usual features of mitosis as seen on microscopy, namely, without nuclear envelope breakdown and without formation of mitotic spindle and condensed chromosomes as far as microscopy can detect. However, most examples of cell division formerly thought to belong to this supposedly ""non-mitotic"" class, such as the division of unicellular eukaryotes, are today recognized as belonging to a class of mitosis called closed mitosis. A spectrum of mitotic activity can be categorized as open, semi-closed, and closed mitosis, depending on the fate of the nuclear envelope. An exception is the division of ciliate macronucleus, which is not mitotic, and the reference to this process as amitosis may be the only legitimate use of the ""non-mitotic division"" sense of the term today. In animals and plants which normally have open mitosis, the microscopic picture described in the 19th century as amitosis most likely corresponded to apoptosis, a process of programmed cell death associated with fragmentation of the nucleus and cytoplasm. Relatedly, even in the late 19th century cytologists mentioned that in larger life forms, amitosis is a ""forerunner of degeneration"".Another sense of amitotic refers to cells of certain tissues that are usually no longer capable of mitosis once the organism has matured into adulthood. In humans this is true of various muscle and nerve tissue types; if the existing ones are damaged, they cannot be replaced with new ones of equal capability. For example, cardiac muscle destroyed by heart attack and nerves destroyed by piercing trauma usually cannot regenerate. In contrast, skin cells are capable of mitosis throughout adulthood; old skin cells that die and slough off are replaced with new ones. Human liver tissue also has a sort of dormant regenerative ability; it is usually not needed or expressed but can be elicited if needed.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report