'New virus particles' diaporamas de présentation

DNA

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Immune system and HIV infection models

Immune system and HIV infection models. Abdessamad Tridane. MTBI summer 2007. HIV PRESENTATION. HIV STRUCTURE. HIV Structure. HIV has just nine genes Three of the HIV genes, called gag, pol and env, contain information needed to make structural proteins for new virus particles.

439 views • 28 slides

Chapter 6 - Viruses

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The Hershey-Chase Experiment

The Hershey-Chase Experiment. Alfred Hershey (1908-1997) was born in Owosso, Michigan. He studied at the Michigan State College, where he obtained B. S. in 1930, and Ph. D. in 1934. In 1967 he got an honorary D. Sc. at the University of Chicago .

1.34k views • 21 slides

Survey of Viruses

Survey of Viruses. Chapter 24. Definition of a Virus. Sub microscopic entity consisting of a single nucleic acid surrounded by a protein coat and capable of replication only within the living cells of bacteria, animals or plants. Definition of a Virus. Obligate Intracellular Parasite.

295 views • 21 slides

HIV and AIDS

HIV and AIDS. What is HIV?. H uman I mmunodeficiency V irus

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Fighting Disease

Fighting Disease. Presentation by : M s. Pellicano. Vocabulary. Bacteria: single celled organisms without nucleus Contaminated: unclean, could infect body Infection: disease causing microorganism invades body, multiplies Toxin: poison produced by bacteria that damages cells

333 views • 12 slides

Viruses and Bacteria

Viruses and Bacteria. Viruses. A virus is a piece of hereditary material (RNA or DNA) that is covered by protein that infects and reproduces in living cells . Viruses are not considered living things because they are unable to reproduce on their own: they require a host cell .

243 views • 10 slides

Viruses

Viruses. Small but deadly!. What Is A Virus?. Viruses do not fit in the six-kingdom system because they do not display most of the characteristics of living cells. Viruses can only live as parasites. They occupy a position between non-living and living. Virus Anatomy.

234 views • 9 slides

Communicable Disease

Communicable Disease. Infectious disease resulting form foreign organisms (pathogens) invading the body and multiplying there. Contagious : Acquired through direct contact / indirect contact Vector : Acquired through an intermediate hosts e.g. mosquito. Communicable Disease. Bacteria

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Viruses

208 views • 6 slides