• 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
Exocytosis Precedes and Predicts the Increase in Growth in
Exocytosis Precedes and Predicts the Increase in Growth in

... (Figure 2). To determine the phase shift, we applied crosscorrelation analysis, a procedure that has been used extensively to compute the temporal relationship between variables (for details, see Holdaway-Clarke et al., 1997). In brief, crosscorrelation analysis compares the entire records of growth ...
A Cellular Hypothesis for the Induction of Blossom
A Cellular Hypothesis for the Induction of Blossom

... fruit cell expansion or Ca delivery to the distal portion of the fruit influence the occurrence of BER. However, since no absolute, critical fruit Ca concentration for the occurrence of BER has been identified, it is now important to define the role of Ca in fruit cell physiology and to seek the cau ...
hydrogen peroxide, nitric oxide and hydrogen sulfide as part of the
hydrogen peroxide, nitric oxide and hydrogen sulfide as part of the

... will have a profound effect on the signaling that may ensue from the production and perception of ROS and RNS. In some organisms such as plants, H2S is present all the time as it is an integral part of sulfate metabolism23. But is can also feed into other sulfur metabolism, for example the presence ...
Keystone Exam Study Guide
Keystone Exam Study Guide

... DNA and Chromosomes – Cell Reproduction, Heredity, and Protein Synthesis Cell Reproduction (Unit 8) BIO.B.1.1 Describe the three stages of the cell cycle: interphase, nuclear division, cytokinesis. ...
Microsoft Word - IBB PAS Repository
Microsoft Word - IBB PAS Repository

... Shao et al., 2011). TA systems are found in plasmids as well as chromosomes, and they are ...
Mitochondrial fusion dynamics is robust in the heart and depends on
Mitochondrial fusion dynamics is robust in the heart and depends on

... in the same area, producing green-only mitochondria surrounded by red-only mitochondria. During the merging of greenonly and red-only mitochondria, abrupt complementary changes in green and red fluorescence validate fusion pore opening and matrix content mixing driven by the concentration gradient. ...
Control of Male Gametophyte Development
Control of Male Gametophyte Development

... The main features of pollen development are shown in Figure 1, which is based on an ultrastructural analysis of microsporogenesis in Arabidopsis thaliana (Owen and Makaroff, 1995). The male gametophyte, or pollen grain, is a three-celled organism that is derived by stereotypical cell divisions. Our ...
237-747-1-SP - International Journal of Applied Research in
237-747-1-SP - International Journal of Applied Research in

... The field of nanotechnology has gained momentum over the past two decades with a broad range of ...
Stress-Related and Circadian Secretion and Target Tissue Actions
Stress-Related and Circadian Secretion and Target Tissue Actions

... glucocorticoids to its ligand-binding domain and binds to the regulatory regions of glucocorticoid-responsive genes through its DNA-binding domain and/or interacts with other transcription factors altering their transcriptional activities (vide infra) (6–10). On the other hand, the hGRβ isoform is a ...
Paradigm Shifts In Neural Induction - Works
Paradigm Shifts In Neural Induction - Works

... different manners, and prior to 1995, it had been thought that the instructions to form these two types of nervous systems were very different. We now know that the instructions for specifying which region. of the ectoderm is to form neural tissue are remar kably similar between these two highly div ...
Multiple Regulatory Elements Contribute to the Vascular
Multiple Regulatory Elements Contribute to the Vascular

... tissues, and across the whole plant, to coordinate the initiation of new shoot organs with that of new roots (Nelson and Dengler 1997, Berleth and Sachs 2001, Dengler 2001, Turner and Sieburth 2002, Ye 2002, Berleth and Scarpella 2004, Fukuda 2004). As such, the patterned differentiation of vascular ...
HIV-1 Replication by Distinct Mechanisms Monocyte
HIV-1 Replication by Distinct Mechanisms Monocyte

... ferentiated monocyte-derived macrophages (MDM)3 (20, 21). On the other hand, exposure of MDM to TNF-␣ before infection is inhibitory, whereas stimulation of latently infected macrophages or monocytic cell lines leads to the up-regulation of virus transcription and expression via activation of the ce ...
Multiple Regulatory Elements Contribute to the Vascular
Multiple Regulatory Elements Contribute to the Vascular

... tissues, and across the whole plant, to coordinate the initiation of new shoot organs with that of new roots (Nelson and Dengler 1997, Berleth and Sachs 2001, Dengler 2001, Turner and Sieburth 2002, Ye 2002, Berleth and Scarpella 2004, Fukuda 2004). As such, the patterned differentiation of vascular ...
Targeting of A. thaliana KNL2 to centromeres
Targeting of A. thaliana KNL2 to centromeres

... KNL2 (KINETOCHORE NULL 2) is involved in recognition of centromeres and in centromeric localization of the centromere-specific histone cenH3. Our study revealed a cenH3 nucleosomebinding CENPC-k motif at the C-terminus of Arabidopsis thaliana KNL2, which is conserved among a wide spectrum of eukaryo ...
View - OhioLINK Electronic Theses and Dissertations Center
View - OhioLINK Electronic Theses and Dissertations Center

... During the process of mitosis a single cell division produces two daughter cells from a single parent cell and each daughter cell has the same genetic information as the parent cell (1, 2). Mitosis produces a pair of sister chromatids from each chromosome. Meiosis is a unique type of cellular divisi ...
Biofilms
Biofilms

... of process water 10, deterioration of the hygienic quality of drinking water 11 and microbially influenced corrosion12. ...
Bax cleavage is mediated by calpain during drug-induced
Bax cleavage is mediated by calpain during drug-induced

... et al., 1996; Squier and Cohen, 1997). Recent data have illustrated the central role of mitochondria in initiating cell death. Upon induction of apoptosis this organelle undergoes a series of changes that are crucial to the death program. One event, the mitochondrial permeability transition (PT), re ...
Core Transcriptional Regulatory Circuit Controlled by the
Core Transcriptional Regulatory Circuit Controlled by the

... number of mapped reads. The black horizontal bar above each gene example indicates the genomic scale in kilobases (kb). Black boxes in the gene map represent exons, and arrows indicate the location and direction of the transcriptional start site. Arrowheads denote regions bound by TAL1. (B) Pairwise ...
The GDP-bound form of Arf6 is located at the plasma membrane
The GDP-bound form of Arf6 is located at the plasma membrane

... biochemically by the formation of a nucleotide-free complex with guanine-nucleotide-exchange factors (GEFs) in which the GEFs are sequestered precluding the activation of their endogenous substrates (Feig, 1999). As well as this activity, G proteins carrying this mutation are often considered to be ...
The Drosophila Planar Polarity Proteins Inturned and
The Drosophila Planar Polarity Proteins Inturned and

... The frizzled pathway instructs Mwh localization: To determine if the frizzled pathway was required for either or both of the subcellular locations where Mwh accumulated, we immunolocalized Mwh in cells mutant for the PCP genes fz, Vang and stan and the PPE genes fy, frtz and in. We first considered ...
Research
Research

... (Sudbery et al., 2004; Magee, 2007). Phenotypic variability may be derived from (i) changes to the proteome due to flexibility of the genetic code (Gomes et al., 2007), (ii) reversible changes in gene expression, such as the dimorphic transition (Brown, 2002), (iii) epigenetic heritable changes in g ...
A Molecular Switch for Targeting between Endoplasmic Reticulum
A Molecular Switch for Targeting between Endoplasmic Reticulum

... domain or motif an AKAP carries, it can bring PKA to different subcellular locations such as the nucleus, plasma membrane, endoplasmic reticulum (ER), Golgi, mitochondria, microtubules, etc. (6 – 8). DAKAP1 (also known as AKAP1, S-AKAP84, and AKAP121) is one of the few dual specificity AKAPs that we ...
The paroxysm of Plasmodium vivax malaria
The paroxysm of Plasmodium vivax malaria

... events have been studied ex vivo. The host response during a P. vivax paroxysm was found to involve T cells, monocytes and neutrophils, and the activity, among others, of the pyrogenic cytokines tumor necrosis factor a and interleukin 2 in addition to granulocyte macrophage –colony stimulating facto ...
PDF
PDF

... advantage (Fig. 3A). In addition, the head cuticle was convoluted and overgrown, phenotypes reminiscent of eyes mosaic for either ft or ex (Fig. 3B), but distinct from eyes lacking core SWH pathway genes such as sav, wts or hpo, which are vastly overgrown and highly convoluted (Fig. 3C). The larger ...
Funguslike Protists
Funguslike Protists

... 12. Protozoans that are __________________________ feed on the cells and body fluids of their hosts. 13. Is the following sentence true or false? Protozoans that are parasites never have more than one host. __________________________________________________________ ...
< 1 ... 32 33 34 35 36 37 38 39 40 ... 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 © 2025
  • DMCA
  • Privacy
  • Terms
  • Report