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  • dorsal
  • Experiments are then described where whole organizer apices, and also subapical squares of dorsal mesoderm from stage-10 donors, are implanted with presumptive polarity reversed 180° relative to that of the host. (biologists.org)
  • Reasons are suggested for the apparently greater autonomy, in this respect, of apical organizer plugs, but evidence is given that autonomy is nevertheless expressed even by squares of dorsal presumptive mesoderm of side ca . 0·1 mm. (biologists.org)
  • The functions and activities of the dorsal organiser are complex and have been discussed in detail elsewhere ( Harland and Gerhart, 1997 ). (biologists.org)
  • The first major transition is from dorsal organiser to chordamesoderm. (biologists.org)
  • Cellular rearrangements involving the mediolateral intercalation and convergence of cells towards the dorsal midline, force the chordamesoderm into an elongated stack of cells. (biologists.org)
  • The cellular precursors of skeletal muscle originate in somites that form along the dorsal side of the organism. (asu.edu)
  • To identify such "organizing" cues, we used microarray analysis to assess whether any target-derived "synaptic organizers" were enriched in the mouse dorsal lateral geniculate nucleus (dLGN) during retinogeniculate synapse formation. (frontiersin.org)
  • neural tube
  • An NTD originates from and is characterized by incomplete closure of the neural tube, which is an organizer and precursor of the central nervous system. (asu.edu)
  • biology
  • In light of the advances in molecular and cellular biology since then, a succinct modern view of the question states: how do genes encode geometry? (biologists.org)
  • The course is intended to complement Basic Biology (which covers cellular and biochemical basis of life) by covering the basic concepts relating to whole-organism topics. (uaeu.ac.ae)
  • Organizers, which comprise groups of cells with the ability to instruct adjacent cells into specific states, represent a key principle in developmental biology. (biologists.org)
  • somites
  • Somites are precursor populations of cells that give rise to important structures associated with the vertebrate body plan and will eventually differentiate into dermis, skeletal muscle, cartilage, tendons, and vertebrae. (asu.edu)
  • physiological
  • Together, using chemical genetics and WISH, the zebrafish becomes a potent whole organism context in which to determine the cellular and physiological effects of small molecules. (jove.com)
  • genetic
  • Dynamic changes in chromatin structure are essential for the organization and utilization of our genetic information and are mediated by epigenetic mechanisms such as histone/DNA modifications, non-coding RNAs and chromatin remodeling. (keystonesymposia.org)
  • molecules
  • The major theme will be devoted to describe and analyze the molecules of life, cell structure and function, and plants/animals diversity, structure and function. (uaeu.ac.ae)
  • Trans-synaptic cues that induce the recruitment of presynaptic release machinery (i.e., synaptic vesicles, active zone components, etc.) or the clustering of neurotransmitter receptors and intracellular scaffolds in the postsynaptic cell have been dubbed "synaptic organizers" and include many of the same families of molecules that contribute to synaptic targeting ( Shen and Cowan, 2010 ). (frontiersin.org)
  • Introduction
  • It includes studying the structure of prokaryotic and eukaryotic cells, microbial nutrition and types of microbial growth, metabolism and energy generation, microbial control by physical and chemical agents, the bases of bacterial taxonomy and genetics and an introduction to the general characteristics and diversity of the various groups of microorganisms including bacteria, fungi, viruses, protozoa and micro-algae. (uaeu.ac.ae)
  • however
  • The possibility remains, however, that the field of information coming to reside in the marginal mesodermal zone, is itself originally set up utilizing the animal pole as an origin, as well as the presumptive organizer site. (biologists.org)
  • structural
  • This structural scaffold provides strengthened, yet dynamic, interactions, stable enough to allow other contacts to take place, to resist to moving cellular tensions, even possibly to cell division. (frontiersin.org)
  • critical
  • The embryonic period or critical period is when most organ systems form, whereas the fetal period, week eight to birth, involves the growth and modeling of the organ systems. (asu.edu)
  • known
  • Boxes C and D, as well as boxes C' and D', are usually located in close proximity, and form a structure known as the box C/D motif. (genecards.org)
  • small
  • The U3 snoRNA secondary structure is characterised by a small 5' domain (with boxes A and A'), and a larger 3' domain (with boxes B, C, C', and D), the two domains being linked by a single-stranded hinge. (genecards.org)