Chapter 13 Notes
... Can’t be _______________ from solution o Obligate ____________________ parasites No ___________________________________ when isolated o Contain single type of __________________________________ o Protein coat (_____________) surrounding the nucleic acid Some are enclosed by an ________________ ...
... Can’t be _______________ from solution o Obligate ____________________ parasites No ___________________________________ when isolated o Contain single type of __________________________________ o Protein coat (_____________) surrounding the nucleic acid Some are enclosed by an ________________ ...
(1) Replication of negative ssRNA viruses
... segmented, negative strand RN A genome. Viruses in this family infect humans, horses, and pigs, as well as nondomestic waterfowl, and are the ca use of influenza. Orthomyxo vir uses are di vided into three types: influenza A, B, and C. Only influenza virus types A and B are of medical importance. Ty ...
... segmented, negative strand RN A genome. Viruses in this family infect humans, horses, and pigs, as well as nondomestic waterfowl, and are the ca use of influenza. Orthomyxo vir uses are di vided into three types: influenza A, B, and C. Only influenza virus types A and B are of medical importance. Ty ...
Virus
... • Much smaller than bacteria(usually measured in nanometers) • Acellular infectious agent having either DNA or RNA • They do not have both! ...
... • Much smaller than bacteria(usually measured in nanometers) • Acellular infectious agent having either DNA or RNA • They do not have both! ...
Chapter 14: Viruses, Prions, and Viroids
... 8. What is a benefit of infection with a lysogenic phage? What change may occur with the bacterial cell? 9. Understand how filamentous phage (M13 and fd) replicate in host cells. What is unique to replication of a ssDNA molecule? 10. What are three mechanisms that reduce infection by phage? 11. Unde ...
... 8. What is a benefit of infection with a lysogenic phage? What change may occur with the bacterial cell? 9. Understand how filamentous phage (M13 and fd) replicate in host cells. What is unique to replication of a ssDNA molecule? 10. What are three mechanisms that reduce infection by phage? 11. Unde ...
Micro Notes
... Protein Coat – The DNA or RNA is surrounded by a protein coat called a capsid. The proteins making up the capsid are known as _capsomeres_____ and play an important role in the _pathogenicity________ of the virus. In addition, the capsid has _carbohydrate___ ID tags known as _glycoproteins____ whi ...
... Protein Coat – The DNA or RNA is surrounded by a protein coat called a capsid. The proteins making up the capsid are known as _capsomeres_____ and play an important role in the _pathogenicity________ of the virus. In addition, the capsid has _carbohydrate___ ID tags known as _glycoproteins____ whi ...
Viruses, Viroids, and Prions
... See separate FlexArt PowerPoint slides for all figures and tables pre-inserted into PowerPoint without notes. ...
... See separate FlexArt PowerPoint slides for all figures and tables pre-inserted into PowerPoint without notes. ...
Viruses - Fillingham
... animal species. Their damage to the brain accumulates over time and eventually leads to death. • Examples of diseases caused by prions include mad cow disease and, in humans, Creutzfeldt-Jakob disease. • Viroids: are smaller than a virus, consisting of very short, circular, single stranded naked RNA ...
... animal species. Their damage to the brain accumulates over time and eventually leads to death. • Examples of diseases caused by prions include mad cow disease and, in humans, Creutzfeldt-Jakob disease. • Viroids: are smaller than a virus, consisting of very short, circular, single stranded naked RNA ...
MIB 311 - Fountain University, Osogbo
... Giant viruses • Giant because 1. they are much larger (850 – 1500 nm) than all previously characterized viruses (10 – 100 nm) • blurred the distinction between viruses and cells • May need to redefine ‘life’ ...
... Giant viruses • Giant because 1. they are much larger (850 – 1500 nm) than all previously characterized viruses (10 – 100 nm) • blurred the distinction between viruses and cells • May need to redefine ‘life’ ...
Bio07_TR_U06_CH19.QXD
... copies of itself, and causes the cell to burst, releasing new virus particles that can attack other cells. The virus uses the materials of the host cell to make copies of its own DNA molecule. In a lysogenic infection, a virus integrates its DNA into the DNA of the host cell, and the viral genetic i ...
... copies of itself, and causes the cell to burst, releasing new virus particles that can attack other cells. The virus uses the materials of the host cell to make copies of its own DNA molecule. In a lysogenic infection, a virus integrates its DNA into the DNA of the host cell, and the viral genetic i ...
Introduction to Plant Virology • History • Definitions • Classification
... 1892: Dmitri Iwanowski, Russian scientist, works with tobacco plants with Tobacco Mosaic Disease -discovers filtration does not remove infectious agent for TM disease -could not visualize agent with microscope, nor grow on microbial media -concluded he had found infectious agent smaller than bacter ...
... 1892: Dmitri Iwanowski, Russian scientist, works with tobacco plants with Tobacco Mosaic Disease -discovers filtration does not remove infectious agent for TM disease -could not visualize agent with microscope, nor grow on microbial media -concluded he had found infectious agent smaller than bacter ...
Virus Notes
... C. The virus’s hereditary material enters the host cell. D. The hereditary material of the virus causes the cell to make viral hereditary material and proteins. E. New viruses form inside of the host cell. F. New viruses are released as the host cell bursts open and is destroyed. ...
... C. The virus’s hereditary material enters the host cell. D. The hereditary material of the virus causes the cell to make viral hereditary material and proteins. E. New viruses form inside of the host cell. F. New viruses are released as the host cell bursts open and is destroyed. ...
Foundations in Microbiology
... Clinical Considerations • Course of viral disease: invasion at portal of entry and primary infection; some viruses replicate locally, others enter the circulation and infect other tissues • Common manifestations: rashes, fever, muscle aches, respiratory involvement, swollen lymph nodes • Body defen ...
... Clinical Considerations • Course of viral disease: invasion at portal of entry and primary infection; some viruses replicate locally, others enter the circulation and infect other tissues • Common manifestations: rashes, fever, muscle aches, respiratory involvement, swollen lymph nodes • Body defen ...
ppt version
... DNA strands. • Groups of genes are expressed from a limited number of shared promoters; to extend the genetic ...
... DNA strands. • Groups of genes are expressed from a limited number of shared promoters; to extend the genetic ...
Name
... Biology Unit 7 Viruses and Bacteria Virus and Bacteria Content Objectives 7.1.1 Diagram and describe the components of a virus and explain why it is not considered a living thing. 7.1.2 Compare and contrast the sequence of events in viral replication by the lytic cycle and the lysogenic cycle. 7.1.3 ...
... Biology Unit 7 Viruses and Bacteria Virus and Bacteria Content Objectives 7.1.1 Diagram and describe the components of a virus and explain why it is not considered a living thing. 7.1.2 Compare and contrast the sequence of events in viral replication by the lytic cycle and the lysogenic cycle. 7.1.3 ...
Viruses Are Viruses Living Things? ______ Why? Viruses, can all
... eventually the viral DNA can be triggered to separate from the host cell DNA and pick up with the lytic cycle at step 2. ...
... eventually the viral DNA can be triggered to separate from the host cell DNA and pick up with the lytic cycle at step 2. ...
Worked on Tobacco Mosaic Virus
... tomato leaves). – Creates mosaic pattern on leaves. – Made a juice of the infected leaves and then put this juice through a filter. • Rubbed the filtered juice onto leaves. • Still became infected. • Concluded that whatever these disease causing particles were, they were very small (smaller than bac ...
... tomato leaves). – Creates mosaic pattern on leaves. – Made a juice of the infected leaves and then put this juice through a filter. • Rubbed the filtered juice onto leaves. • Still became infected. • Concluded that whatever these disease causing particles were, they were very small (smaller than bac ...
Viruses and Bacteria
... G. HIV can replicate in your cells 1. Acquired immunodeficiency syndrome (AIDS) is a disease in which an individual is unable to defend his or her own body against infections. 2. The HIV causes AIDS. ...
... G. HIV can replicate in your cells 1. Acquired immunodeficiency syndrome (AIDS) is a disease in which an individual is unable to defend his or her own body against infections. 2. The HIV causes AIDS. ...
Viruses - Humble ISD
... Change Over Time Viruses & Disease **Remember ALL viruses are parasitic which means they require a living host and they cause harm to that host** Bacteriophages ...
... Change Over Time Viruses & Disease **Remember ALL viruses are parasitic which means they require a living host and they cause harm to that host** Bacteriophages ...
Human disease
... undergo antigenic shift to elude host immune system. • Classified into A, B, or C groups based on the antigens in their protein coats. • Infection in upper respiratory tract, usually through inhalation of droplets from another infected person. • Symptoms include fever, chills, aching. • Secondary ba ...
... undergo antigenic shift to elude host immune system. • Classified into A, B, or C groups based on the antigens in their protein coats. • Infection in upper respiratory tract, usually through inhalation of droplets from another infected person. • Symptoms include fever, chills, aching. • Secondary ba ...
Student Worksheets
... What diseases did you choose to research? _________________________________________ _________________________________________ _________________________________________ _________________________________________ QUIZ QUESTIONS 1. What was Beijerinck’s major insight regarding how to identify viruses? a ...
... What diseases did you choose to research? _________________________________________ _________________________________________ _________________________________________ _________________________________________ QUIZ QUESTIONS 1. What was Beijerinck’s major insight regarding how to identify viruses? a ...
Viruses Lecture 1
... The discovery of viruses Ivanowsky, 1892, the agent which causes tobacco mosaic disease is not retained by filters Beijerinck, 1898, same observation, proposed small agent 1898, foot and mouth disease similar Could not be isolated in pure culture! Required hosts for replication Contagium vividum flu ...
... The discovery of viruses Ivanowsky, 1892, the agent which causes tobacco mosaic disease is not retained by filters Beijerinck, 1898, same observation, proposed small agent 1898, foot and mouth disease similar Could not be isolated in pure culture! Required hosts for replication Contagium vividum flu ...
PowerPoint Presentation - Epidemiology and Prevention of
... was initially described by Edward Jenner in 1798. During the 1800's, all infectious agents were considered to be viruses until Koch developed pure culture techniques which allowed the separation and growth of bacteria. In the late 1800's: Bacteria were purified and established as disease causing age ...
... was initially described by Edward Jenner in 1798. During the 1800's, all infectious agents were considered to be viruses until Koch developed pure culture techniques which allowed the separation and growth of bacteria. In the late 1800's: Bacteria were purified and established as disease causing age ...
History of virology
The history of virology – the scientific study of viruses and the infections they cause – began in the closing years of the 19th century. Although Louis Pasteur and Edward Jenner developed the first vaccines to protect against viral infections, they did not know that viruses existed. The first evidence of the existence of viruses came from experiments with filters that had pores small enough to retain bacteria. In 1892, Dmitry Ivanovsky used one of these filters to show that sap from a diseased tobacco plant remained infectious to healthy tobacco plants despite having been filtered. Martinus Beijerinck called the filtered, infectious substance a ""virus"" and this discovery is considered to be the beginning of virology. By the 20th century many viruses were discovered.