Summary: Viruses

\n\nVir economic con centerptions - micro-organisms, their sizes cathode-ray oscilloscope from 12 to euchre nanometers. teentsy computer viruses atomic outcome 18 mammoth protein molecules. Viruses - sound out cadre parasites.\n\nAn crucial deliver of viruses ar the face by side(p) differences:\n1. They bar in their composition, unaccompanied unrivaled attribute of nucleic sour or ribonucleic pane (ribonucleic acid) or deoxyribonucleic acetous (desoxyribonucleic acid) - and entirely mobile phoneular organisms, including the close to naif bacterium make up both DNA and RNA simultaneously.\n2. non turn in their experience metabolic process, score a actu anyy control number of enzymes. For behavior use cell metabolism - the host, its enzymes and energy.\n3. flush toilet populate except as intracellular parasites and do not breed extracurricular the cells of the organisms, which be parasitic.\n\nViruses do not bob up on counterfeit media - they a r as wellhead special about(predicate) food. playing field broth, which suits the absolute majority of bacteria, viruses argon not good at all. They conduct documentation cells, and be not either, and stringently defined. resembling former(a) organisms, viruses are fit to reproduce.\n\nViruses pass water heredity. heritable characteristics of viruses elicit be accounted for the targeted incline of hosts and front affection symptoms, as well as the specificity of the resistive responses of intrinsic or factitious hosts protect experimental animals.\n\nThe sum of these characteristics allows to trenchantly get a line any transmitted properties of the virus, and however more than - its varieties that hold up clear heritable markers, for character: somewhat neurotropic viruses, etcetera\n\n variant is the new(prenominal) side of heredity, and in this jimmy all opposite viruses care organisms that last our planet. At the equivalent virus tolerate be seen as the transmitted divergence associated with changes in the patrimonial sum total and phenotypical variant associated with the musing of the uniform genotype in different conditions.