'Viral genome' diaporamas de présentation

Overview: Microbial Model Systems Viruses called bacteriophages

0.5 ?m. Figure 18.1. Overview: Microbial Model Systems Viruses called bacteriophages Can infect and set in motion a genetic takeover of bacteria, such as Escherichia coli. E. coli and its viruses

1.03k views • 68 slides

Chapter 18

Chapter 18. The Genetics of Viruses and Bacteria. Viruses and bacteria are the simplest biological systems. Bacterial cells are much smaller and simpler than those of eukaryotes Viruses are even smaller and simpler, lacking the structure and metabolic machinery of cells.

608 views • 50 slides

Fever

643 views • 38 slides

Central dogma: Information flow in cells

Central dogma: Information flow in cells. Nucleotides. Pyrimidine bases: Cytosine (C), Thymine (T), Uracil (U, in RNA) Purine bases: Adenine (A), Guanine (U). Prokaryotic gene coding. Eukaryotic processing of rRNA. A-T hydrogen bonding. G-C hydrogen bonding. Genetic Elements.

596 views • 35 slides

Viral Genetics

Viral Genetics. Microbiology: The Genetics of Viruses https://www.youtube.com/watch?v=UEKS4w9bfJg. Viruses &Bacteria: simplest biological systems. Viruses: smaller/ simpler than bacteria Contain nucleic acid and protein ONLY

1.06k views • 33 slides

Family: Picornaviridae ( Enteroviruses ).

Family: Picornaviridae ( Enteroviruses ). Dr. Mohammed Arif Associate professor Consultant virologist Head of the virology unit. Structure. Picornaviruses = small RNA viruses . Picorna viruses are small, 20-30 nm, icosahedral particles. Unenveloped.

599 views • 32 slides

Paramyxoviridae

Paramyxoviridae. All members initiate infection in RT Parainfluenza & RSV Remain limited to respiratory epithelium Mumps & measles become disseminated throughout the body and produce generalized disease. PARAMYXOVIRIDAE. PARAMYXOVIRIDAE Two sub- families. Paramyxovirinae Pneumovirinae.

818 views • 30 slides

Microbial Models: Viruses and Bacteria AP Biology 1/08/03

Microbial Models: Viruses and Bacteria AP Biology 1/08/03 . Discovery of viruses Science as a process Tobacco Mosaic Virus *Mayer 1883 Disease is contagious; small maybe bacteria *Ivanowsky 1893 Filtered and found pathogen to be very small bacteria or toxin *Beirjerinck 1897

537 views • 26 slides

siRNA and Epigenetic

siRNA and Epigenetic. Asma Siddique Saloom Aslam Syeda Zainab Ali. Topics under discussion. Brief History Intro to different terms What is RNAi? What is siRNA? siRNA formation Difference between miRNA and SiRNA siRNA design Therapies Challenges Clinical trials. History.

401 views • 26 slides

Zoology 145 course

Zoology 145 course. General Animal Biology. For Premedical Student. Zoology Department Lecture 3 : Viruses. 1436-1437H. Viruses. Objectives. Describe why viruses are not considered living organisms. Describe the basic structure of viruses.

495 views • 21 slides

Virus & Bacteria Jeopardy!

Virus & Bacteria Jeopardy!. Viruses $100. Describe the basic structure of a virus. Infectous particles consisting of a nucleic acid (DNA or RNA)enclosed in protein coat , and in some cases a membranous envelope. Return. Viruses $200.

490 views • 21 slides

Virology Introduction to viruses

Virology Introduction to viruses

424 views • 19 slides

Viral Vectors

Viral Vectors. May 8. Viral vectors. Herpes simplex virus amplicons Adenovirus vectors Lentivirus vectors. Herpes simplex virus amplicons. HSV replicative cycle. cell-cell spread. inclusion body. suppression of class I MHC. HSV amplicons. cloning site. defective virus. promoter.

624 views • 19 slides

Herpesviruses

Herpesviruses. 100 nm. Herpesvirus structures are unique, with tegument layer present and genomic DNA wrapped around core. Herpesviridae. Large family of large, complex viruses Infect vertebrate hosts Three subfamilies: Alphaherpesvirinae, 2 genera Betaherpesvirinae , 3 genera

636 views • 17 slides

Viruses

CHAPTER 18. Viruses. Page 328. 1- Viruses are much smaller than bacteria. 2- Virus is about 20nm in diameter. 3- Viruses are not cells. 4- A virus is a genome ???? ???? enclosed in a protective coat ???? ????. Fig. 18.1, Page 329. Genome ( DNA/RNA ). Protein coat ( capsid ).

397 views • 17 slides

Translational efficiency of Dengue Virus(DEN) and DEN variants in cells.

Translational efficiency of Dengue Virus(DEN) and DEN variants in cells. . Andrew Regan - Microbiology. DREHER LAB - ALS1065. Dengue Virus. Vectored by mosquito. Dengue Virus. DEN infection causes: Dengue Fever (DF) fever, headache, rash, muscle pain .

322 views • 15 slides

Viral cultures

Investigation strategies and methods. Viral cultures. May 2007. Learning objectives. At the end of the presentation, participants should: Understand the principle of cultivating viruses Understand the methods and problems with cultivating viruses. Techniques to identify viruses.

467 views • 12 slides

Writing an introduction: Added Value Talk for Virology Students 5/13/2013

Writing an introduction: Added Value Talk for Virology Students 5/13/2013. Anne Simon. Introduction Regulation of gene expression is an essential cellular process that occurs at multiple levels including translation of mRNAs into proteins.

167 views • 8 slides

Lecture 1 PROKARYOTES AND VIRUSES

Lecture 1 PROKARYOTES AND VIRUSES. Viral Structure. Have viral genome of DNA/RNA (ss/ds) Viral genome is surrounded by capsid. Capsid is protein coat. Coat consists of 1 or >1 types of protein subunits arranged into rod-like/polyhedral shape.

150 views • 2 slides

SHAPE analysis of viral RNA transcripts

SHAPE analysis of viral RNA transcripts Daniel Hodges, Tara Seymour, Emily Spurlin, and Rebecca Alexander Department of Chemistry, Wake Forest University.

205 views • 1 slides