• Study Resource
  • Explore
    • 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
Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and
Arabidopsis ORGAN SIZE RELATED1 regulates organ growth and

... proliferation phase, during which cell number increases dramatically, and the subsequent cell expansion phase, during which cells expand to appropriate sizes (Mizukami, 2001; Anastasiou & Lenhard, 2007). These two phases are referred to as ‘growth by cell proliferation’ and ‘growth by cell expansion ...
FREE Sample Here
FREE Sample Here

... 10) Which type of cell structure is the nucleolus organizer (NOR) responsible for producing? Answer: ribosome Section: 2.1 11) Name two cellular organelles, each having genetic material, that are involved in either photosynthesis or respiration. Answer: chloroplasts and mitochondria Section: 2.1 12) ...
Roles of vaccinia virus EEV-specific proteins in intracellular actin tail
Roles of vaccinia virus EEV-specific proteins in intracellular actin tail

... that A56R is the only EEV-specific protein examined that is dispensable for induction of actin-tail formation. As host components are required for the formation of actin tails on intracellular bacteria (Welch et al., 1997), it was possible that loss of VV-induced actin tail formation could be due to ...
TGF beta signalling and its role in tumour pathogenesis
TGF beta signalling and its role in tumour pathogenesis

... it to the extracellular matrix. Cellular recognition of extracellular matrix-associated LTBP and subsequent recognition of latent TGF-β are essential steps in its activation (Hyytiainen et al., 2004). The latency proteins also contribute to the cytokine stability. Free TGF-β has a half life of about ...
CD4 T Cell-Associated Pathophysiology Critically Depends on
CD4 T Cell-Associated Pathophysiology Critically Depends on

... expression may causally be involved in the development of a psoriasiform dermatitis comes from the clinical observation that some LAD1 patients with only moderately reduced CD18 expression levels develop a psoriasiform dermatitis (42). Linkage analysis of psoriasis families has identified a region o ...
RNA interference screening in Drosophila primary cells for genes
RNA interference screening in Drosophila primary cells for genes

... both the differentiation program of the myogenic pathway and myoblast fusion, illustrating the remarkable conservation of many aspects of myogenesis between flies and vertebrates (Baylies et al., 1998; Chen and Olson, 2004). However, genetic analyses of myofibril assembly have been limited because t ...
Roles of vaccinia virus EEV-specific proteins in intracellular actin tail
Roles of vaccinia virus EEV-specific proteins in intracellular actin tail

... that A56R is the only EEV-specific protein examined that is dispensable for induction of actin-tail formation. As host components are required for the formation of actin tails on intracellular bacteria (Welch et al., 1997), it was possible that loss of VV-induced actin tail formation could be due to ...
Direct Visualization by Cryo-EM of the Mycobacterial Capsular
Direct Visualization by Cryo-EM of the Mycobacterial Capsular

... Cell envelope organization of mycobacterial cells The ultra-structure of the mycobacterial cell envelope was investigated using 30 nm vitreous sections, as previously described [15]. As a control for structural preservation of the envelope morphology, we also examine vitreous sections of the Gramneg ...
division plane orientation in plant cells
division plane orientation in plant cells

... pith tissue (Panteris et al. 2004). Nuclear migration into the division plane occurs after CCR formation coincident with a proliferation of transvacuolar strands, some of which connect the nucleus to the CCR, forming a phragmosome. The MT component of the PPB forms in alignment with the CCR and phra ...
Full text
Full text

... an increase of undegraded endosomal and autophagosomal compartments, and ultimately to slow, adult-onset degeneration.1 Furthermore, loss of v0a1 also causes severe neurotransmission defects and thereby embryonic lethality. The recent Drosophila studies were made possible by a genetic method that on ...
The Differences between NAD-ME and NADP
The Differences between NAD-ME and NADP

... In contrast, C4 NADP-ME, which is thought to derive from a C3 chloroplast-localized ancestor and rooted from an ancient cytosolic isoform, has specific function in C4 photosynthesis in BS cells of NADP-ME subtype plants (Maier et al., 2011). The emergence of C4 NAD-ME and NADP-ME would include the s ...
Jeopardy
Jeopardy

... Topic 1: Prokaryotic Cells ...
A Golgi and tonoplast localized Sacyl transferase is involved in cell
A Golgi and tonoplast localized Sacyl transferase is involved in cell

... expression profiles of most PATs, and their complex targeting patterns in cellular membrane compartments which are different from their counterparts in yeast and mammals (Batistic, 2012). As part of an effort to determine the biological functions of Arabidopsis PATs we analysed two T-DNA insertion ...
Waite Study Guide for Quiz/Exam 1 Quiz 1
Waite Study Guide for Quiz/Exam 1 Quiz 1

... Be able to define and differentiate between adhesion and cohesion; know the property of water that allows it to be both cohesive and adhesive; know the phenomena that result from the interplay between these forces ...
Regulation of the human vitamin C transporters expressed in COS
Regulation of the human vitamin C transporters expressed in COS

... process should be electrogenic. Indeed, when rSVCT1 and rSVCT2 and hSVCT1 and hSVCT2 were expressed in Xenopus oocytes, ascorbic acid induced an inward, transport-associated current (25, 28). In some studies, hSVCT2 has been shown to exhibit a higher affinity for ascorbic acid than hSVCT1 (28 ⫾ 6 vs ...
04-Membranes-Organelles
04-Membranes-Organelles

...  Arise from the Golgi complex  They contain enzymes that break down macromolecules  Function in intracellular digestion of  Worn-out cellular components  Substances taken into cells  The resulting material is then recycled ...
Accurate Cell Division in E. Coli: How Does a Bacterium Know
Accurate Cell Division in E. Coli: How Does a Bacterium Know

... • Many mathematical models of the Min system Howard et al: Phys. Rev. Lett. (2001) Meinhardt et al: PNAS (2001) Kruse: Biophys J. (2002) ...
Get cached
Get cached

... of >50 and 46 µg/ml, respectively. In all subsequent assays, concentrations corresponding to 1/4 MIC90 values of these complexes values were employed i.e. AgClO4 and [Ag(phendio)2]ClO4 at a concentration of 1.5 µg/ml and Cu(ClO4 )2 ·6H2 O and [Cu(phendio)3](ClO4 )2 ·4H2 O at concentrations of 12.5 µ ...
James G. Heys , 363 (2013);  DOI: 10.1126/science.1233831
James G. Heys , 363 (2013); DOI: 10.1126/science.1233831

... Both bats and rats exhibit grid cells in medial entorhinal cortex that fire as they visit a regular array of spatial locations. In rats, grid-cell firing field properties correlate with theta-frequency rhythmicity of spiking and membrane-potential resonance; however, bat grid cells do not exhibit th ...
Loose Connective Tissue
Loose Connective Tissue

... connective tissue is used as a base for epithelial tissues and as filler between tissues and around organs to maintain their structure, keep them connected, and keep them in their proper places. In this section of the prostate gland, all of the light blue stained area is loose connective tissue. Sca ...
The Drosophila centriole – conversion of
The Drosophila centriole – conversion of

... mother centriole in cross section, the daughter centriole was always visible in a longitudinal orientation (Fig. 2E–G), whereas images showing cross sections of the daughter never contained the mother centriole (Fig. 2H,I). This is because the daughter centriole is always orthogonal to the basal end ...
Recent advances in X-chromosome inactivation
Recent advances in X-chromosome inactivation

... known as extra sex chromosomes or ESC) and Enx1 (the mouse homologue of Enhancer of zeste [EZ]), the latter being a H3 Lys-9/27 histone methyltransferase (HMTase), may be implicated in both imprinted and random X inactivation [27,28,32,33]. This seems to parallel the situation in Drosophila, wh ...
Cell surface monoamine oxidases: enzymes in search of a function
Cell surface monoamine oxidases: enzymes in search of a function

... this reaction results in production of aldehydes, hydrogen peroxide and ammonium, which are all biologically active substances. The physiological functions of these enzymes have remained unknown, although they have been suggested to be involved in the metabolism of biogenic amines. Recently, new rol ...
Guidelines for Building Self-Organizing Maps
Guidelines for Building Self-Organizing Maps

... SOMs organize themselves by competing for assignment  of observations.  Cells adjust their weights with each  placement by becoming more similar to cells in their  immediate vicinity which have had assignments. – Create a list of observations with values on a number of  variables (dimensions) – Comp ...
Bio 226: Cell and Molecular Biology
Bio 226: Cell and Molecular Biology

... Course Project = Algal Lipid Production 1)Decide which algae to study http://www.cbs.umn.edu/lab/wackett/links/oil Next assignment: each pick an alga and product and convince the group in 5-10 minutes why your choice is best. Next Wed? ...
< 1 ... 176 177 178 179 180 181 182 183 184 ... 1130 >

Cellular differentiation



In developmental biology, cellular differentiation isa cell changes from one cell type to another. Most commonly this is a less specialized type becoming a more specialized type, such as during cell growth. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover. Some differentiation occurs in response to antigen exposure. Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics. With a few exceptions, cellular differentiation almost never involves a change in the DNA sequence itself. Thus, different cells can have very different physical characteristics despite having the same genome.A cell that can differentiate into all cell types of the adult organism is known as pluripotent. Such cells are called embryonic stem cells in animals and meristematic cells in higher plants. A cell that can differentiate into all cell types, including the placental tissue, is known as totipotent. In mammals, only the zygote and subsequent blastomeres are totipotent, while in plants many differentiated cells can become totipotent with simple laboratory techniques. In cytopathology, the level of cellular differentiation is used as a measure of cancer progression. ""Grade"" is a marker of how differentiated a cell in a tumor is.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report