Are Viruses, Prions and Viriods Alive?

In order to see where viruses, viroids and prions fit into the scheme of life, we pick out to issue what life is and what the properties of life are. The capabilities of viruses, viroids and prions and the diseases they cause. Should they be considered alive if they only study a few of lifes properties because their survival depends on other livelihood carrells. Life consists of living things and these living things pick out carrells that possess the expertness for order, reproduction, growth and development, vital force utilization, evolutionary adaptation, response to the environs and homeostasis (Campbell and Reece, 2002). These capabilities represent life in animals, plants and humans.All livings things are susceptible to infirmity and disease, with viruses being a study cause; they also castrate the behaviour of the host of whom they hold (Villarreal, 2004). The structure of viruses is of free particles that have a protein coat and a nucleic acid core (Keeton and Gould, 1967). Viruses have similarities to prokaryotic cellular phones (cells that lack organelles), they share similar genetic materials and constantly entwine (Keeton and Gould, 1967) with each other. The particles float outside the cell, consequently enter a reasoned cell within the host. Once inside, the healthy cell manufactures new virus particles when the old virus provides the didactics (Keeton and Gould, 1967).

The new particles leave the host cell, instigate into another cell and repeat the process. Viruses are also fitting of entering the cell and remaining vegetative (waiting for the right e nvironmental conditions to emerge), cartel ! their viral deoxyribonucleic acid with the hosts DNA for replication or as a unchangeable cell fixture (Keeton and Gould, 1967), it doesnt necessarily land the cell it enters (Norrby, 1981). There are two kinds of virus, which are ground upon the kind of nucleic acid that makes up its genome... If you want to get a full essay, order it on our website: OrderCustomPaper.com

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