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  • embryo
  • Play media In C. elegans, a series of asymmetric cell divisions in the early embryo are critical in setting up the anterior/posterior, dorsal/ventral, and left/right axes of the body plan. (wikipedia.org)
  • After fertilization, events are already occurring in the one cell stage embryo to allow for the first asymmetric cell division. (wikipedia.org)
  • The centrosomes deposited by the sperm seem to be responsible for the establishment of the posterior pole within the one cell embryo. (wikipedia.org)
  • This second feature is the origin of the term 'embryophyte' - the fertilized egg develops into a protected embryo, rather than dispersing as a single cell. (wikipedia.org)
  • stages
  • This image shows Chinese hamster ovary cells in the last stages of division. (wisconline.com)
  • The disregulation of the orientation of cell divisions result in the creation of the cell out of epithelium and is observed at the initial stages of cancer. (wikipedia.org)
  • The Biophysics Unit expanded and in the 1960s moved to the site in Drury Lane that later became known as the Randall Institute, incorporating at various stages the King's Biophysics Department, MRC Cell Biophysics Unit, and MRC Muscle and Motility Unit. (wikipedia.org)
  • membrane
  • The outer membrane furrows and seems to pinch in, but ultimately does not close itself off to form two complete cells. (wisconline.com)
  • The red outer membrane is complete around each new cell, while the green midbody still remains between them. (wisconline.com)
  • They showed in an animal model that the defect exposes a normally hidden binding site on the receptor molecule near the inner cell membrane. (innovations-report.com)
  • Such interaction of STAT3 close to the inner cell membrane was previously unknown and unexpected. (innovations-report.com)
  • Resistance-nodulation-division (RND) family transporters are a category of bacterial efflux pumps, especially identified in Gram-negative bacteria and located in the cytoplasmic membrane, that actively transport substrates. (wikipedia.org)
  • Embryophyte cells also generally have an enlarged central vacuole enclosed by a vacuolar membrane or tonoplast, which maintains cell turgor and keeps the plant rigid. (wikipedia.org)
  • divisions
  • The human body experiences about 10 quadrillion cell divisions in a lifetime. (wikipedia.org)
  • The term asymmetric cell division usually refers to such intrinsic asymmetric divisions. (wikipedia.org)
  • Reproducible patterns of oriented cell divisions were described during mophogenesis of Drosophila embryos, Arabidopsis thaliana embryos, Drosophila pupa, zebrafish embryos and mouse early embryos. (wikipedia.org)
  • Oriented cell divisions contribute to the tissue elongation and the release of mechanical stress. (wikipedia.org)
  • Such divisions insert new formed cells in the epithelium layer. (wikipedia.org)
  • receptors
  • Chemical messengers such as hormones bind to receptors, and this causes changes in the cell. (wikipedia.org)
  • Breast cancer cells may or may not have many different types of receptors, the three most important in the present classification being: estrogen receptor (ER), progesterone receptor (PR), and HER2/neu. (wikipedia.org)
  • Glucocorticoids also suppress the humoral immunity, causing B cells to express smaller amounts of IL-2 and IL-2 receptors. (wikipedia.org)
  • poles
  • Acutodesmus is characterized as having acute cell poles, while Desmodesmus and Scenedesmus have obtuse/truncated cell poles (differentiated by the presence or absence of spines respectively). (wikipedia.org)
  • centrioles
  • Meiosis features color photomicrographs (2,400x) of lily pollen and color diagrams of centrioles and asters found only in animal cells. (carolina.com)
  • Centrioles are generated in new daughter cells through duplication of preexisting centrioles in the mother cells. (wikipedia.org)
  • Each daughter cell inherits two centrioles (one centrosome) surrounded by pericentriolar material as a result of cell division. (wikipedia.org)
  • During S and G2 phase of the cell cycle, the procentrioles elongate until they reach the length of the older mother and daughter centrioles(which takes on characteristics of a mother centriole). (wikipedia.org)
  • anaphase
  • Anaphase B is just one part of the complex molecular choreography that is cell division. (redorbit.com)
  • He wanted to understand what happens during Anaphase B. So his team, led by postdoctoral fellow Chuanhai Fu, PhD, began systematically mutating molecular motors in the fission yeast, Schizosaccharomyces pombe and then clocking each mutant's cell division. (redorbit.com)
  • Only in cells containing mutant Klp9p was Anaphase B significantly slower. (redorbit.com)
  • Now, however, "we have a very detailed and complete description of four molecules" -- Klp9p, Ase1p, Cdc2p, and Clp1p "" each playing a role in one aspect of cellular division, Anaphase B. (redorbit.com)
  • determinants
  • These RND systems are involved in maintaining homeostasis of the cell, removal of toxic compounds, and export of virulence determinants. (wikipedia.org)
  • relies
  • Successful growth and division for algae relies on a balance between maintaining buoyancy in the euphotic zone (containing ideal light and nutritional conditions) and avoidance of grazing predators. (wikipedia.org)
  • molecules
  • The chemical is called putrescine (1,4 diaminobutane), a malodorous organic compound within the polyamine family-a group of molecules already known to play a crucial role in important functions like cell division. (discovermagazine.com)
  • phase
  • The length of the cell cycle can be controlled, and data related to the number of cells present and their current phase can be recorded. (explorelearning.com)
  • There are three transition checkpoints the cell goes through before entering the M phase. (wikipedia.org)
  • Instead, it was the start of a collaboration that has helped to decipher a critical, but so far largely unstudied, phase of how cells divide. (redorbit.com)
  • First, procentrioles begin to form near each preexisting centriole as the cell moves from the G1 phase to the S phase. (wikipedia.org)
  • By preventing the clonal expansion of lymphocytes in the induction phase of the immune response, it affects both the cell and the humoral immunity. (wikipedia.org)
  • It is ideal for performing experiments because all bacteria are at about the same state (as opposed to stationary phase, for example, where some cells are alive and others are dead). (wikipedia.org)
  • researchers
  • The discovery reveals that, when disturbed, this process could contribute to cancer or other diseases by failing to properly control the steps and timing of cell division, the researchers say. (medindia.net)
  • molecular
  • The Randall Division of Cell and Molecular Biophysics (the Randall) is a research institute of King's College London located in London United Kingdom. (wikipedia.org)
  • After King's merged with the Guy's and St Thomas' Medical Schools in 1998, the Randall Institute research groups moved to new labs on the Guy's Campus at London Bridge, which became the present Randall Division of Cell and Molecular Biophysics. (wikipedia.org)
  • biological
  • Ullrich and his associates have now demonstrated for the first time that the defect results in a previously unknown biological function in living cells. (innovations-report.com)
  • process
  • Both of these cell division cycles are used in the process of sexual reproduction at some point in their life cycle. (wikipedia.org)
  • The process is akin to two children dividing up their Halloween candy: collect your candy, pile it in the middle, and divide it into two equal portions. (redorbit.com)