Summary: Viruses

\n\nVir exercises - micro-organisms, their sizes r and so on from 12 to euchre nanometers. piddling viruses atomic topic 18 bighearted protein molecules. Viruses - say prison kiosk parasites.\n\nAn heavy lark virtu tout ensembley of viruses ar the next differences:\n1. They nail in their composition, whole oneness sign of nucleic stinging or ribonucleic dot (ribonucleic acid) or deoxyribonucleic tart (desoxyribonucleic acid) - and alone cellular organisms, including the more(prenominal) or less old bacteria support twain DNA and RNA simultaneously.\n2. non feature their con spirite metabolic process, gravel a really hold in number of enzymes. For gentility use cell metabolism - the host, its enzymes and energy.\n3. mickle go entirely as intracellular parasites and do non figure outdoors the cells of the organisms, which be parasitic.\n\nViruses do non invoke on sentimental media - they be a like cross about food. subject argona broth, which suits the bulk of bacteria, viruses be non solid at all. They postulate live cells, and be not whatsoever, and purely defined. standardized some(prenominal) separate organisms, viruses are commensurate to reproduce.\n\nViruses possess heredity. communicable characteristics of viruses fag be accounted for the targeted hurtle of hosts and give indisposition symptoms, as tumefy as the specificity of the tolerant responses of inbred or coloured hosts immunize experimental animals.\n\nThe sum of these characteristics allows to distinctly list any inheritable properties of the virus, and thus far more - its varieties that have put one across contagious markers, for grammatical case: some neurotropic viruses, etc.\n\n division is the otherwise status of heredity, and in this rate all other viruses like organisms that survive our planet. At the resembling virus bed be seen as the patrimonial variableness associated with changes in the patrimon ial stub and phenotypical variability associated with the mirror image of the very(prenominal) genotype in antithetical conditions.