Parcourir les catégories

  • Anatomie 105 questions
  • Organismes 43 questions Any living biological entity, such as an animal, plant, fungus, or bacterium.
    • Eukaryota 3 questions
    • Archéobactéries 0 questions One of the three domains of life (the others being BACTERIA and Eukarya), formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. They are characterized by: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls; (3) the presence of ether-linked lipids built from branched-chain subunits; and (4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. The domain contains at least four kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; NANOARCHAEOTA; and KORARCHAEOTA.
    • Bactéries 14 questions Bactéries, gram-positif, formant des endospores. Elles comprennent les genres suivants : BACILLUS ; CLOSTRIDIUM ; MICROMONOSPORA ; SACCHAROPOLYSPORA et STREPTOMYCES.
    • Virus 2 questions Petits agents infectieux aux génomes constitués, soit d'ADN, soit d'ARN (jamais des deux), sans métabolisme propre et dans l'incapacité de se multiplier en dehors des cellules vivantes.
      • Arbovirus 0 questions Virus des Arthropodes. Ces virus sont transmis de vertébrés à vertébrés par un arthropode. Leur classification n'est pas taxonomique. Ils comprennent des virus appartenant à différentes familles dont : ARENAVIRIDAE, BUNYAVIRIDAE, REOVIRIDAE, TOGAVIRIDAE et FLAVIVIRIDAE (From Dictionary of Microbiology and Molecular Biology, 2nd ed)
      • Virus D'Archaea 0 questions Viruses whose hosts are in the domain ARCHAEA.
      • Bactériophages 0 questions Virus dont l'hôte est une bactérie.
      • Virus Défectifs 0 questions Virus incapable de se multiplier ou de former ses protéines de capside. Certains sont des virus défectifs hôtes dépendants, ils peuvent se multiplier dans les systèmes cellulaires qui leur apportent la fonction génétique manquante. D'autres, appelés VIRUS SATELLITES, ne peuvent se multiplier qu'en présence d'un virus helper (virus auxiliaire).
      • Virus 0 questions Petits agents infectieux aux génomes constitués, soit d'ADN, soit d'ARN (jamais des deux), sans métabolisme propre et dans l'incapacité de se multiplier en dehors des cellules vivantes.
      • Virus Auxiliaire 0 questions Viruses which enable defective viruses to replicate or to form a protein coat by complementing the missing gene function of the defective (satellite) virus. Helper and satellite may be of the same or different genus.
      • Virus Hépatite 0 questions Tout virus entraînant une inflammation du foie. Ces virus sont des virus à ADN et à ARN, présents chez l'homme et chez l'animal.
      • Virus Des Insectes 0 questions Viruses infecting insects, the largest family being BACULOVIRIDAE.
      • Virus Oncolytiques 0 questions Tumor-selective, replication competent VIRUSES that have antineoplastic effects. This is achieved by producing cytotoxicity-enhancing proteins and/or eliciting an antitumor immune response. They are genetically engineered so that they can replicate in CANCER cells but not in normal cells, and are used in ONCOLYTIC VIROTHERAPY.
      • Virus Des Plantes 0 questions Viruses parasitic on plants higher than bacteria.
      • Provirus 0 questions Duplex DNA sequences in eukaryotic chromosomes, corresponding to the genome of a virus, that are transmitted from one cell generation to the next without causing lysis of the host. Proviruses are often associated with neoplastic cell transformation and are key features of retrovirus biology.
      • Virus Recombinant 0 questions Viruses containing two or more pieces of nucleic acid (segmented genome) from different parents. Such viruses are produced in cells coinfected with different strains of a given virus.
      • Virus2 0 questions Petits agents infectieux aux génomes constitués, soit d'ADN, soit d'ARN (jamais des deux), sans métabolisme propre et dans l'incapacité de se multiplier en dehors des cellules vivantes.
      • Virus Vertébrés 0 questions Virus infectant l'homme ainsi que d'autres vertébrés.
      • Virion 0 questions The infective system of a virus, composed of the viral genome, a protein core, and a protein coat called a capsid, which may be naked or enclosed in a lipoprotein envelope called the peplos.
      • Viroïde 0 questions A group of pathogens comprising the smallest known agents of infectious disease. They are unencapsulated and are capable of replicating autonomously in susceptible cells. Positively identified viroids composed of single-stranded RNA have been isolated from higher plants, but the existence of DNA viroids pathogenic to animals is suspected.
      • Virus Non Classés 0 questions Virus dont les rapports taxonomiques n'ont pas été établis.
        • Anellovirus 0 questions A free-floating DNA virus genus, unattached to any family, comprising several species of hepatitis-related viruses.
        • Nanovirus 0 questions A genus in the family NANOVIRIDAE containing multiple circular single-stranded DNA molecules. The type species is Subterranean clover stunt virus.
        • Picobirnavirus 0 questions Unclassified, bisegmented, double-stranded RNA virus isolated from the feces of humans and other animals. Some reports associate it with gastroenteritis in humans.
    • Organism Forms 0 questions
  • Maladies 198 questions Any impairment of normal physiological function affecting all or part of an organism, esp a specific pathological change caused by infection, stress, etc, producing characteristic symptoms; illness or sickness in general.
  • Produits chimiques et pharmaceutiques 80 questions Any substance used in or resulting from a reaction involving changes to atoms or molecules, especially one derived artificially for practical use and any synthetic, semisynthetic, or natural chemical substance used in the treatment, prevention, or diagnosis of disease, or for other medical reasons.
  • Techniques et équipements analytiques, diagnostiques et thérapeutiques 37 questions
  • Psychiatrie et psychologie 16 questions The branches of medicine concerned with the diagnosis and treatment of mental illness and the scientific study of all forms of human and animal behaviour, sometimes concerned with the methods through which behaviour can be modified.
  • Phénomènes et processus 17 questions
  • Disciplines et professions 11 questions
  • Anthropologie, enseignement, sociologie et phénoménes sociaux 5 questions
  • Technologie, industrie et agriculture 2 questions
  • Sciences humaines 8 questions
  • Sciences De L'Information 2 questions Champ de la connaissance, théorie, et technologie, traitant de la collection de faits et de calculs, ainsi que des processus et des méthodes impliqués dans leur manipulation, stockage, diffusion, publication, et recherche. Il inclut la communication, l'édition, la bibliothéconomie, et l'informatique.
  • Individus 5 questions
  • Santé 100 questions
  • Caractéristiques d'une publication 2 questions
  • Lieux géographiques 10 questions The study of the natural features of the earth's surface, including topography, climate, soil, vegetation, etc, and man's response to them.
Poser une question:
Bienvenue à, où vous pouvez poser des questions et recevoir des réponses d'autres membres de la communauté.
Limitation de responsabilité: N'évalue pas ni ne garantit l'exactitude des contenus de ce site.