• 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
Shewanella oneidensis MR-1 chemotaxis proteins and electron
Shewanella oneidensis MR-1 chemotaxis proteins and electron

... electron transfer along extracellular appendages known as microbial nanowires [11–13]; and (iv) extracellular matrices containing conductive or semi-conductive minerals [14]. Given that survival of the cells may well be dependent upon EET, it would be surprising if a number of solutions to this prob ...
FIP2 and Rip11 specify Rab11a-mediated cellular
FIP2 and Rip11 specify Rab11a-mediated cellular

Androgen receptor complexes probe DNA for recognition
Androgen receptor complexes probe DNA for recognition

... RESEARCH ARTICLE ...
Notochord morphogenesis in Xenopus laevis
Notochord morphogenesis in Xenopus laevis

... isodiametric. Bidirectionally protruding cells are modeled by restricting protrusive activity to two nodes located at opposite ends of the cell. Bidirectionally protrusive cells will intrinsically elongate into a spindle shape. In addition to notochord cells, many other types of motile cells in vitr ...
Flyer AN07 VDAC.cdr
Flyer AN07 VDAC.cdr

... (3) Data by kind permission of A. Lange, Department for Structural Biology, Max Planck Institute for Biophysical ...
Urinalysis
Urinalysis

... Microscopic Examination Culture (not covered in this lecture) Cytological Examination ...
Super Bug by Dr. Sarma
Super Bug by Dr. Sarma

... equipment, the body, I am the servant of You and thus of all. In the form of the life principle with in me, I am the part and parcel of You and thus of all. In the form the soul, You are within me and similarly in every other being or animal or thing that I behold. I have arrived at this conclusion ...
7-3 Cell Boundaries - River Dell Regional School District
7-3 Cell Boundaries - River Dell Regional School District

... identify each other. Some proteins form channels and pumps to help move material into and out of the cell ...
File - MJHS White Team
File - MJHS White Team

... B. unicellular (single-celled organisms) C. eukaryotic – they DO contain a nucleus as well as other cell parts that monerans lack ...
Regulation of Microbe-Associated Molecular
Regulation of Microbe-Associated Molecular

Isolation of Spherosomes with Lysosome Characteristics from
Isolation of Spherosomes with Lysosome Characteristics from

... activity after separation of the particulate compo­ nents from the soluble material indicates the pos­ sibility of an interaction between hydrolases and soluble factors. In fact the high speed supernatant contains an inhibitory factor for acid protease and phosphatase as demonstrated by determ inati ...
One tissue, two fates: different roles of megagametophyte cells
One tissue, two fates: different roles of megagametophyte cells

... plants there seems to be more overlap between the phenotypic and molecular characteristics of PCD and necrosis, which makes the discrimination between the two forms more complicated (Van Breusegem and Dat, 2006). In plants, PCD occurs when cell suicide pathways are activated as a part of normal grow ...
Tonic and burst firing: dual modes of
Tonic and burst firing: dual modes of

... relay cells of lateral geniculate nucleus of the cat, recorded intracellularly from an in vitro slice preparation. (a),(b) Voltage dependency of the LTS. Responses to the same depolarizing current pulse delivered intracellularly are shown, but from two different initial holding potentials. When the ...
Tyler`s Presentation
Tyler`s Presentation

... • RNAi will result in the disruption of ciliary lipid rafts domains reflected in a shift in protein distribution in the sucrose gradient • Disruption of GPI anchored Folate binding proteins will result in decreased attraction to Folate in T-Maze Assays • Expect decreased backward swimming time due t ...
Heat shock results in cell cycle delay and synchronisation of mitotic
Heat shock results in cell cycle delay and synchronisation of mitotic

... the heat shock, together with cells in domains showing their correct temporal sequence of divisions. Consequently, most of the cephalic region and large parts of the body, corresponding to domains 10 and 11, are now all dividing together. The perturbation of the temporal sequence can lead to an even ...
Slides - Institute for Evidence
Slides - Institute for Evidence

... Death-resistant cells Mitochondrial mutations Intracellular junk Extracellular junk Extracellular crosslinks ...
REVIEW ARTICLE Mechanisms of pattern formation in development
REVIEW ARTICLE Mechanisms of pattern formation in development

... mechanisms that use cell behaviors other than signaling (we will refer to these as morphogenetic mechanisms) act on the previously established pattern to cause the formation of threedimensional tissues and organs. As described in detail below, morphogenetic mechanisms change the spatial distribution ...
CH Aims Word
CH Aims Word

... Aim 5: What is cellular respiration? How is it different from photosynthesis? Chapter 2 - Sect 2 Chapter 3 - Sect 4 School Text Pages - 49-53 Home Text Pages - 91-94 ...
Developmental%Biology%
Developmental%Biology%

... The$evoluSonary$puzzle$described$in$this$poster$ uses%C.%elegans%as$an$example,$but$the$general$ The$puzzle$can$also$be$visualized$by$“counSng$ back”$cell$number$and$modes$of$differenSaSon$ difficulty$extends$to$any$metazoan$ontogeny.$ Key$events$in$the$history$of$life,$such$as$the$ from$wildUtype$C.%e ...
Analytical tools for single-molecule fluorescence imaging in
Analytical tools for single-molecule fluorescence imaging in

... fluorescence imaging in cellulo M.C. Leake a Recent technological advances in cutting-edge ultrasensitive fluorescence microscopy have allowed single-molecule imaging experiments in living cells across all three domains of life to become commonplace. Single-molecule live-cell data is typically obtai ...
Head-tail patterning of the vertebrate embryo: one, two or many
Head-tail patterning of the vertebrate embryo: one, two or many

... 1987; Lall and Patel, 2001; Huynh and St Johnston, 2004; Tautz, 2004), maternal gene products become distributed in a graded fashion along the long axis of the cytoplasm of the oval-shaped fertilized egg. The antero-posteror axis is specified maternally and is related to the axis of the mother, the ...
Shifts, Aneuploidy, and Loss of Heterozygosity Rapid Mechanisms
Shifts, Aneuploidy, and Loss of Heterozygosity Rapid Mechanisms

... during this parasexual cycle therefore results in the nonsexual exchange of genetic material. Since the pioneering work of Pontecorvo, similar parasexual cycles have been found in other fungal species such as A. fumigatus (Berg and Garber 1962), indicating that some species can undergo both sexual a ...
Histology of Nervous Tissue
Histology of Nervous Tissue

... from the CNS to muscles and glands ...
Arabidopsis R-SNARE Proteins VAMP721 and VAMP722 Are
Arabidopsis R-SNARE Proteins VAMP721 and VAMP722 Are

... targeted secretion along the phragmoplast, where homotypic fusion of Golgi-derived vesicles gives rise to the cell plate [3]. After the cell plate eventually fuses with the parental plasma membrane, two individual cells are separated by a new cell wall [4,5]. The maturation of the cell plate to a ri ...
Apigenin
Apigenin

< 1 ... 261 262 263 264 265 266 267 268 269 ... 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