BIOL 101 Lecture Notes - Lecture 11: Barry Marshall, Electron Microscope, Parasitism
Document Summary
Electron passes through specimen and reveals internal structures. Microbial agent of disease (same as a parasite) Live on the surface of the host. When the pathogen begins to grow in or on host. Microbe must be present in that disease always and absent in undiseased. Same micro must be reisolated from now-sick patient. Was his own test subject of koch"s postulates. Drank a microbe that he thought caused stomach ulcers (he was right) Route taken from one organism to another. From one member of a species to another. Host not part of normal cycle unintentionally encounters it. Stretches of dna that contain clusters of virulence genes with specific functions. Can be inherited through horizontal gene transmission. Microorganisms have 1 circular chromosome and possess plasmids that separate from parental. Use restriction enzymes to chop dna reattach and put into bacteria (kind of like.
