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32 Cards in this Set
- Front
- Back
Eukaryotic phylogenetic relationships are obtained from what?
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Fossils
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True or False?
Aids in identification of bacteria are morphological characteristics, staining techniques, enzymatic activity and serolgical tests. |
True
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DNA finger-prints are obtained by what?
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First restriction endonucleases and then gel electrophoresis
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Nitrifying bacteria oxidize or reduce nitrogen compounds?
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Oxidize
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What bacterium inhabits mucous membranes of mammals?
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Neisseria gonorrhea
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Name two bacteria that cause life-threatening infections, have high G+C in their DNA, are acid-fast and have high lipid content.
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Mycobacteria and corynebacteria
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Fungi gain nutrition from the breakdown of what?
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Complex organic molecules (ex: wood and lignin)
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What kind of spores do both Penicillium and Aspergillus have?
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Conidiospores
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Aspergillus belongs to what phylum?
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Ascomycota
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What traits do species in the phylum ascomycota have?
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They have septate hyphae, produce ascospores and sometimes conidiospores.
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A protozoan cyst is equivalent to a bacterial aerial spore, a fungal aerial spore or a bacterial endospore?
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Bacterial endospore
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True or False?
Humans are the definitive host of both the beef tapeworm and the pork tapeworm. |
True
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What is a definitive host?
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Where the parasite goes through sexual or asexual processes.
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What is host range?
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The spectrum of host cells in which a virus can multiply
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What can be used to identify viruses?
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Nucleic acid fingerprints and serological tests
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Name two bacteria that cause life-threatening infections, have high G+C in their DNA, are acid-fast and have high lipid content.
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Mycobacteria and corynebacteria
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Fungi gain nutrition from the breakdown of what?
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Complex organic molecules (ex: wood and lignin)
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What kind of spores do both Penicillium and Aspergillus have?
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Conidiospores
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Aspergillus belongs to what phylum?
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Ascomycota
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What traits do species in the phylum ascomycota have?
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They have septate hyphae, produce ascospores and sometimes conidiospores.
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What are oncogenic viruses?
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Viruses that cause cancer
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What is a persistent viral infection?
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One in which the disease processes occur over a long period of time and they are generally fatal
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True or False?
Viroid RNA codes for proteins. |
False
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Colonization and invasion factors are carbohydrates, lipids or proteins?
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Proteins
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Prevention of pathogens from causing an infection is called what?
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Antagonism
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What are oncogenic viruses?
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Viruses that cause cancer
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What is a persistent viral infection?
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One in which the disease processes occur over a long period of time and they are generally fatal
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True or False?
Viroid RNA codes for proteins. |
False
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Colonization and invasion factors are carbohydrates, lipids or proteins?
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Proteins
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Prevention of pathogens from causing an infection is called what?
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Antagonism
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A relationship where one organism benefits and one is harmed is called what?
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Parasitism
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What branch of epidemiology deals with the frequency and distribution of risk factors in populations?
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Descriptive epidemiology
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