'Abstract: Viral disease organisms'

'\n\nthrough forbidden the development of the intuition of viruses were three of import hypotheses.\nAccording to the initiative of these viruses argon descendants of bacteria or other iodine-celled organisms that have undergone degenerative growth. According to the second, viruses are descendants of ancient, pre-cellular, lifespan forms that have move to the parasitic dash of existence.\nAccording to the third, viruses are derivatives of cellular communicableal structures that have induce relatively self-directed, barely remain certified on the cells.\n misadventure of degenerative evolution has been repeatedly found and proven, and perhaps the nearly striking workout of it git perform as the transmission line of some eucaryotic cell organelles from symbiotic bacteria.\nFor example, it has been established that the simplest and implant chloroplasts are descended from ancestors of the teal bacteria and mitochondria - the ancestors of purpleness bacteria. Ther efore, this possibility can not be ruled out for the starting time of viruses, particularly those of large, complex and autonomous, as is the sm completelypox virus.\n so far the world is in any case different viruses to do the possibility of much(prenominal) profound degenerative evolution for well-nigh of its representatives from the pox viruses, herpes to reovirus, not to raise such autonomous familial structures, as plasmids.\nDiversity of contractable framework from viruses is one of the arguments in advance of the origin of the virus pre-cellular forms. Indeed, the patrimonial material of viruses exhaust all its possible forms: wiz - and double-stranded ribonucleic acid and DNA, their linear, placard and fragmentary views.\n however the diversity of the genetic material of viruses kind of indicates polyphyletic origin of viruses than the conservation of ancestral forms precellular, whose genome has evolved to an unbelievable path from RNA to DNA single-strand of double-stranded forms to and so forth\nThe third surmisal 20-30 years seemed incredible and even got the realise ironic guessing rabid genes. However, it is delicate to explain not only preferably obvious polyphyletic origin of viruses, but to a fault a familiarity as diverse structures, what are the practiced and defective viruses, plasmids, and satellites. This supposition also follows that procreation was not virus-time event, and occurred repeatedly and continues to happen today.\nIn ancient times, along with the formation of cellular forms, there was a formation and one-celled submitted viruses - autonomous, but cell-dependent genetic structures. Currently living viruses are products of evolution, as the oldest of their ancestors, and newly emerging autonomous genetic structures.'