BISC300 Chapter Notes - Chapter 6: Viral Envelope, Virus, Animal Virus
27 Nov 2016
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6. 1 viruses are acellular: the discipline of virology studies viruses, a unique group of infectious agents whose distinctiveness resides in their simple, acellular organization and pattern of multiplication. Viruses are major cause of disease their simplicity also has made them attractive model organisms they served as models for understanding dna replication, rna synthesis, and protein synthesis: viruses can exist either extracellularly or intracellularly. When extracellular, they are inactive because they possess few, if any, e(cid:374)z(cid:455)(cid:373)es a(cid:374)d (cid:272)a(cid:374)"t (cid:396)ep(cid:396)odu(cid:272)e outside of li(cid:448)i(cid:374)g (cid:272)ells. Numerous viruses infect bacteria; they are called bacteriophages, or phages for short. Viruses have been classified into numerous families based primarily on. 6. 2 virion structure is defined by capsid symmtery and presence or absence of an genome structure, life cycle, morphology, and genetic relationships. Envelope: a complete virus particle is called a virion. Progress has come from the use of several different techniques: electron microscopy, x-ray diffraction, biochemical analysis, and immunology: general structural properties.
