微生物学英文教学课件:chapter8 The Viruses Introduction and General Characteristics.ppt,(1)nucleic acid type (2) nucleic acid strandedness (3) presence or absence of an envelope Recently, the International Committee for Taxonomy of Viruses has developed
Computer analysis has revealed that the closely-related allexiviruses also contain a TGBp3-like sequence but without a normal start codon. Whether such a protein is expressed invivois not yet known. Discussion TGB proteins are involved in the cell-to-cell movement of potexviruses, and it has...
Intr文档格式PPT 系统标签: oshaworkershazardssafetyworkertraining DirectorateofTrainingandEducationOSHATrainingInstitutePurpose: ToprovideworkerswithintroductoryinformationaboutOSHATopics:1.WhyisOSHAimportanttoyou?2.WhatrightsdoyouhaveunderOSHA?3.WhatresponsibilitiesdoesyouremployerhaveunderOSHA?4.WhatareOSHAstandards?5...
Spumavirinae Spumavirus Simian foamy viruses (SFVs) None binding site; Ψ, encapsulationsignal; gag, pol, env, minimal set of retroviral genes; ppt, polypurine tract; U3, unique sequenceat Mat- uration is accompanied by a characteristic change in the morphology of virions....
Protection and Security Protection – any mechanism for controlling access of processes or users to resources defined by the OS Security – defense of the system against internal and external attacks Huge range, including denial-of-service, worms, viruses, identity theft, theft of service Systems ge...
Viruses – acellular Either have DNA or RNA Obligate intracellular parasites Helminths – multicellular Worms Eggs are microscopic Classification of organisms 1969 Robert whittaker 5 kingdom system Classification based on Cell type - prokaryotic/eukaryotic Cellular organization – unicellular/multicellular Nutri...
Some words may have only the foreign plural form, for example, bacillus → bacilli, ovum → ova, some may have only the regular form, for example, virus → viruses, antibody → antibodies, electron→ electrons. Many have both forms, for example, vertebra →vertebras, vertebrae, matrix → ...
8、ection against environmental agents that are foreign to the body. (to recognize and eliminate foreign substances) 2.Agents: microorganisms (viruses, bacteria etc) and their products, foods, chemicals, pollen, tumor cells, etc. 3.Immune system: immune tissues and organs, immune cells, immune ...
1_Introduction_to_Microbiologyppt:1_introduction_to_microbiologypptto,1,一 文档格式: .ppt 文档大小: 1.34M 文档页数: 56页 顶/踩数: 0/0 收藏人数: 0 评论次数: 0 文档热度: 文档分类: 外语学习--英语学习 文档标签: to1一 系统标签:
From History of the Peloponnesian War Immunitas immunity Immunity 1.Immunity: refers to all mechanisms used by the body as protection against environmental substances that are foreign to the body. (to recognize and eliminate foreign substances) 2.Substances: microorganisms (viruses, bacteria etc) and...