Viroids Viroids Very small, covalently closed, circular RNA molecules capable of autonomous replication and induction of disease Sizes range from 250-450 nucleotides ...
Viral History Discovery of Viruses Beijerinck ... A virus is a non-cellular particle made up of genetic material and protein that can invade living cells.
A virus is a non-cellular particle made up of genetic material and protein ... Viewing Viruses Viral Structure Characteristics Characteristics Characteristics ...
All living organisms can be infected by specific viruses ... Virus may be present w/ no symptoms. Chicken pox virus latent in blood - emerges as shingles ...
Viruses, Viroids, and Prions Are Viruses Living or Non-living? Viruses are NOT considered living. They have some properties of life but not others They can t ...
Named according to where it was discovered and what it did. Newer viruses. Type of nucleic acid ... DNA viruses. RNA viruses. Other concerns. Viruses and cancer ...
Viruses, Viroids, and Prions Bits and Pieces that cause disease Viruses Viruses contain DNA or RNA and a protein coat Some are enclosed by an envelope Some viruses ...
Viruses, Prions and Viroids Infectious Agents of Animals and Plants Chapter 14 Structure and Classification of Animal Viruses Classification of animal viruses ...
Viruses, Viroids, and Prions Are Viruses Living or Non-living? Viruses are both and neither They have some properties of life but not others For example, viruses can ...
A cellular infectious agents. Viruses, viroids, & prions. Department of Applied Science. King Saud University/ Community College. By: Murad Sawalha ...
2. Most viruses infect only specific types of cells in one host species ... Electron Micrograph of a T-even Bacteriophage (Lytic) with a Contractile Sheath ...
... Time Course of Infections How the Flu Changes its Spots Prion-Associated Disease Hypothesis for Prion Action Link to Next Presentation Some viruses are ...
5.9 Viroids and Prions ... Prions represent the other extreme from viroids. ... The prion protein particle is infectious, and various prions are known to cause ...
VIRUSES Chapter 19 Viroids in Plants Fig. 19-11 Prion Normal protein Original prion New prion Aggregates of prions Misfolding of proteins to form prions Remember ...
KEY CONCEPT Infections can be caused in several ways. Viruses, bacteria, viroids, and prions can all cause infection. Any disease-causing agent is called a pathogen.
KEY CONCEPT Infections can be caused in several ways. * Viruses, bacteria, viroids, and prions can all cause infection. Any disease-causing agent is called a pathogen.
Viruses What are they? How do they work? Where do they come from? And What good are they? * Non-viral Infectious Agents Viroids- The smallest known particle that ...
Let s see if you re as smart as an android You will have 5 minutes to answer this question Compare and contrast viroids and prions. 4 Minutes 3 Minutes 2 Minutes ...
y Arqueas 1-3 mm levaduras 5-10 mm Microorganismos acelulares VIRUS VIROIDES PRIONES Un solo tipo de cido nucleico. Envoltura proteica. Par sito intracelular obligado.
Plant Stresses may cause ... not considered causes of Abiotic Diseases Infectious Plant Disease Causes Fungi Prokaryotes Viruses Viroids Nematodes Protozoa ...
The Flu Shot. Viroids and Prions. Viroids ... The Common Flu (influenza) ... You can pick up the flu virus from any surface or from the air. Flu Shots. HIV and AIDS ...
7. Viroids and Prions. 1. Viruses are very small. What are Viruses? ... Foot & Mouth Disease Virus (FMDV) 3. Size and shape of viruses. Helical. symmetry ...
Title: No Slide Title Last modified by: a a Document presentation format: On-screen Show Other titles: Times Arial Default Design PowerPoint Presentation Multiple ...
WHAT THE HECK IS A VIRUS? The Form, Reproduction, and Genetics of Viruses Viral Shapes More Viral Forms Emerging Viruses Neuron Capacity Overload Virus Other Kinds of ...
Chapter 19~Viruses Viral structure Virus: poison (Latin); infectious particles consisting of a nucleic acid in a protein coat Viruses are not cells Capsid ...
Chapter 18 Viruses What is a virus? A virus is a disease-causing, non-living particle made of a nucleic acid on the inside and a protective protein coat on the outside.
IN: Discuss the following two questions with your group. What is a virus? (Come up with a definition.) Are viruses alive? (Be prepared to defend your answer.)
The infectious agent is a single-stranded circular RNA molecule ... potato, avocado, chrysanthemum and other plants. PSTV potato spindle tuber viroid ...
19-3 Diseases Caused by Bacteria and Viruses Pathogens: disease-causing agents. Bacteria: help in digestion, control growth of other bacteria. Pasteur: showed that ...
T4 bacteriophage infecting an E. coli cell 0.5 m Science as a Process Research into tobacco mosaic disease led to the conclusion that the pathogen was smaller than a ...
Late 19th century (summarized on p. 4) Pure culture techniques. discovery of causative agents of disease. Control of infection with aseptic technique ...
Diseases Caused by Bacteria and Viruses Section 19-3 This section describes bacterial and viral diseases. Bacterial Disease in Humans What are pathogens?
More than 500 viruses could fit inside a single bacterial cell. Viral Shapes. Helical Viruses ... Trichonympha: breakdown cellulose in termite hindgut. Flagellates ...
Student Learning Outcomes: 1. Name some organisms that are microorganisms. 2. Explain the importance of microorganisms to our everyday lives. 3. Describe the ...
Galls. Bacterial Wetwood. Very common on ... Crown Gall. Caused by Agrobacterium tumifaciens, a soil bacterium ... Galls interfere with nutrient and water flow ...
CHAPTER 2 PLANT PATHOLOGY PARASITISM AND DISEASE DEVELOPMENT PARASITISM AND DISEASE DEVELOPMENT The pathogens that attack plants belong to the same groups of ...