PPT-GENERAL PROPERTIES OF VIRUSES

DR MONIKA RAJANI ASSOCIATE PROFESSOR DEPT OF MICROBIOLOGY CIMSH LKO Dr Monika Rajani Dr Monika Rajani VIRUSES Neither prokaryotes nor eukaryotes No cellular organisation Contain either DNA or RNA . DNA Enveloped . Viruses. I. Objectives. In this lecture you will learn about properties, pathogenesis, clinical picture and diagnosis of: . Herpesviruses. . (HHVs 1 to 8). Poxviruses. Smallpox Virus. ‘. Pollution is. energy . or . matter . released . into . the environment . with. the. potential . to cause . adverse changes . to . an . ecosystem’. They . are usually released by . human activities . HIV infected T-cell. Viral Structure. not . cells. small . infectious particles . w/. DNA or RNA enclosed . in a protein coat . (capsid). in . some cases. , a membranous envelope. Viral Genomes. genomes . EQ: Why are viruses considered to be non-
living?. Characteristics:. *Nonliving particles made of . nucleic acid. and a . protein coat . enlosed in a . capsid. shell... *In order to reproduce, all viruses must have a . 8.1 What Is a Virus? Plus 9.1, 9.2 (parts). 8.2 Structure of the Virion. 8.3 Overview of the Virus Life Cycle. 8.8 . Temperate Bacteriophages and . Lysogeny. 8.10, 9.6, 9.7 Overview of Animal Viruses. DNA . is a molecule in your cells’ nuclei that can be . used as instructions by your cells . to make new cells, and pigments for your hair and skin.. What is DNA again?. The DNA instructions are really a pattern of 4 different chemicals read as a code by the cell’s nucleus.. June 2002 Virginia Semiconductor 1501 Powhatan Street, Fredericksburg, VA 22401-4647 USA Phone: (540) 373-2900, FAX (540) 371-0371 www.virginiasemi.com , tech@virginiasemi.com A. Introduction Th . . The process of transfer of virus into host is referred as . TRANSMISSION. and this is an important step in the life cycle of viruses.. Person to person infections are said to be . HORIZONTAL. . As a group discuss for 1 minute. Be able to defend your answer for the class!. Are . VIRUSES. alive?. Growth and Development. Reproduce. Change Over Time. Obtain and Use Energy. Maintain Homeostasis. - 2022(MICROBIOLOGY) Group - A History of Development of Microbiology Development of microbiology as a discipline, Spontaneous generation vs . biogenesis. Contributions of Anton va n Leeuwenhoek, Page 1 of 2 1/16  Report Immediately: 800.472.2180 or 701.328.2378 Possible Bioterrorism Agents (CDC classified A, B or C Agent) Viral Hemorrhagic Fever  What is Viral Hemorrhagic Fever ? Vi Dept. of Biology, 2. nd. stage, 2016-2017. 2. nd. semester. References. :. Virology: principles and applications, John Carter and Venetia Saunders, 2013.. Principles of Molecular Virology, Alan, J. . Topics. Week l:. -Introduction and General characters of viruses. . (History ,definition, and importance of study). . Viral . structure. Virus . structure and morphology. composition . General characters of viruses. :. Virus . particles are very small in size; they are between 20-500 nm (nanometer) in . diameter. For this Viruses . cannot be seen by ordinary microscope, but only by Electron microscope (EM)..