PPT-Viruses and

Other Acellular Infectious Agents 1 6 Copyright McGrawHill Global Education Holdings LLC Permission required for reproduction or display Acellular Agents Viruses protein and nucleic acid. Mike . Morain. Basic Lecture Structure. History of malware. Nature and operation of malware. Discuss means of identification, removal, and . prevention. Virtualization in malware. A Brief History. John Von Neumann. Chapters 12 and 13. Viral Characteristics and Structure. Why Viruses aren’t Alive. General Characteristics of Viruses. Name derives from the Latin for “poison”. Obligatory intracellular parasites. 1. A program that attaches itself to another . executable. (a . host program. ). Whenever the host program is executed, virus code is ran and it can make a copy of itself and infect other executables found in your memory or hard drive. A. Viruses are a unique group of biological entities. 1. They are not capable of surviving without a host cell (lack metabolic machinery). 2. They do, however, contain all the information necessary to direct metabolic processes. Protists. , Fungi. Chapter 7. Grade 7 Science. Viruses. _____ - a tiny, non-living particle invades and then multiplies inside of a living cell.. Viruses can only multiply when they are _____ of a living cell.. CLS 212: Medical Microbiology. History. Through the 1800s, many scientists discovered that something smaller than bacteria could cause disease and they called it . virion. (. Latin word- poison. ).. Where the name came from. This is a phrase coined from biology to describe a piece of software that behaves very much like a real virus (only it spreads from computer to computer rather than people!).. STRUCTURE. A core nucleic acid - DNA or RNA. Nucleic Acid surrounded by a protein, called a capsid.. CLASSIFICATION. By genomes: DNA viruses, RNA viruses or retroviruses . (any . of a group of RNA viruses that insert a DNA copy of their genome into the . Viruses . A nonliving (?) particle made of proteins, nucleic acids, and sometimes lipids (fats). Viruses only reproduce by infecting living cells. Most viruses can only be seen with an electron microscope. Prabhaker Mateti. Mateti, Viruses, Trojans and Worms. 2. Virus Awareness. Virus Bulletin . http://www.virusbtn.com/. . Technical journal on developments in the field of computer viruses and anti-virus products . . Copyright © Houghton Mifflin Harcourt Publishing Company. Unit 2. . Lesson 1 . Archaea, Bacteria, and Viruses. Sized Extra-Small. Copyright © Houghton Mifflin Harcourt Publishing Company. All living things are either prokaryotes or eukaryotes.. How they affect us!. What are Viruses. A virus is a tiny, non-cellular, . non-living. particle that enters and then . reproduces inside a living cell. .. All viruses have . two basic parts. : . A . protein coat . Mike . Morain. Basic Lecture Structure. History of malware. Nature and operation of malware. Discuss means of identification, removal, and . prevention. Virtualization in malware. A Brief History. John Von Neumann. . . 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. .