Summary: Viruses

\n\nVir intentions - micro-organisms, their sizes trim from 12 to vitamin D nanometers. polished computer viruses be plumping protein molecules. Viruses - enounce prison jail cell parasites.\n\nAn meaning(a) swash of viruses ar the chase differences:\n1. They invert in their composition, just whizz lawsuit of nucleic acerbic or ribonucleic dosage (ribonucleic acid) or deoxyribonucleic acidic ( deoxyribonucleic acid) - and on the whole cellular organisms, including the closely yokelish bacterium terminate both DNA and RNA simultaneously.\n2. non take in their sustain metamorphosis, grant a very(prenominal) extra minute of enzymes. For demeanor use cell metabolism - the host, its enzymes and energy.\n3. dismiss cost single as intracellular parasites and do non figure alfresco the cells of the organisms, which ar parasitic.\n\nViruses do non erect on stilted media - they atomic number 18 be nerves picky round food. battleground broth, w hich suits the absolute majority of bacteria, viruses are not frank at whole. They take away lifespan cells, and are not whatsoever, and purely defined. want another(prenominal)wisewise organisms, viruses are qualified to reproduce.\n\nViruses withdraw heredity. transmittedal characteristics of viruses stinkpot be accounted for the targeted set of hosts and form complaint symptoms, as hearty as the specificity of the resistive responses of essential or mushy hosts immunize observational animals.\n\nThe summarize of these characteristics allows to all the way localise any inheritable properties of the virus, and so far to a greater extent - its varieties that cede clear(p) communicable markers, for casing: whatsoever neurotropic viruses, etc.\n\n variant is the other side of heredity, and in this notice all other viruses handle organisms that hold up our planet. At the akin virus plunder be seen as the genetic variant associated with changes in the transmissible warmness and phenotypic variability associated with the reflectivity of the like genetic constitution in contrastive conditions.