12332620
Frage 1
Frage
Grouping organisms into categories to show degrees of similarities is called?
Antworten
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Systematics
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Taxonomy
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Hierarchy
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Nomenclature
Frage 2
Frage
Which of the following statements describes the Domain Bacteria?
Antworten
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They are multicellular
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They have linear chromosomes
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They have prokaryotic cells
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That have eukaryotic cells
Frage 3
Frage
What process can be used to increase the amount of microbial DNA to levels that can be tested by gel electrophoresis?
Antworten
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Phage typing
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DNA fingerprinting
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Polymerase chain reaction (PCR)
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Western blotting
Frage 4
Frage
Treating DNA from different bacteria with the same restriction enzymes followed by separation of the fragments by electrophoresis is known as
Antworten
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DNA base composition
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DNA fingerprinting
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The nucleic acid amplification test (NAAT)
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Ribotyping
Frage 5
Frage
Which of the following techniques can identify antibodies in a patient’s serum?
Antworten
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Flow cytometry
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Southern blotting
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Western blotting
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Phage typing
Frage 6
Frage
The test that involves a reaction between known antibodies and an unknown bacterium is known as
Antworten
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ELISA
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Phage typing
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Flow cytometry
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Southern blotting
Frage 7
Frage
Genetically related groups of eukaryotes that share a common ancestor are known as
Antworten
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Species
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Clones
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Strains
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Clades
Frage 8
Frage
Which one of the following do NOT apply to eukaryotic cells?
Antworten
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Contain 80S ribosomes
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Have histones
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Have circular chromosomes
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Exhibit growth via mitosis
Frage 9
Frage
Organisms that can form thin tubes called hyphae belong in the Kingdom
Antworten
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Animalia
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Fungi
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Plantae
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Protista
Frage 10
Frage
Historically, eukaryotic organisms that did NOT fit into other kingdoms were placed into which kingdom?
Antworten
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Protista
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Fungi
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Plantae
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Animalia
Frage 11
Frage
Fossil evidence indicates that prokaryotic cells first existed on Earth ___________years ago.
Antworten
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3.5 billion
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3.5 million
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350,000
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3500
Frage 12
Frage
In the scientific name Staphylococcus aureus, Staphylococcus is the
Antworten
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class
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Genus
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Species epithet
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Family
Frage 13
Frage
A clone is
Antworten
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The same as a species
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A population of cells with similar characteristics
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A freely interbreeding population
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A population of cells derived from a single parent cell
Frage 14
Frage
The two domains of prokaryotes are
Antworten
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Bacteria and Archaea
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Bacteria and Fungi
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Archaea and Fungi
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Bacteria and Protista
Frage 15
Frage
Which of the following bacteria LACKS a cell wall?
Antworten
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Borrelia
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Clostridium
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Mycoplasma
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Mycobacterium
Frage 16
Frage
Which one of the following is NOT a category of Archaea?
Antworten
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Halophiles
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Pathogens
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Thermophiles
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Acidophiles
Frage 17
Frage
Nitrogen-fixing bacteria that infect the roots of leguminous plants are known as
Antworten
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Nanobacteria
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Cyanobacteria
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Pseudomonads
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Rhizobia
Frage 18
Frage
The largest bacterium discovered, found in sediments of the coastal waters off Namibia, belongs to the genus
Antworten
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Mycobacterium
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Pseudomonas
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Thiomargarita
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Staphylococcus
Frage 19
Frage
Alphaproteobacteria often have stalk-like or budlike protrusions known as
Antworten
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Axial filaments
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Myxospores
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Prosthecae
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Elementary bodies
Frage 20
Frage
Which of the following is NOT a member of the order Enterobacteriales?
Antworten
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Pseudomonas
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Escherichia
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Salmonella
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Shigella
Frage 21
Frage
The MOST common infectious genus in the world which ONLY lives inside the cells of insects is
Antworten
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Coxiella
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Brucella
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Wolbachia
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Bartonella
Frage 22
Frage
The phylogenetic relationship among proteobacteria is based on ________studies.
Antworten
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rRNA
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mRNA
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DNA
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tRNA
Frage 23
Frage
Which of the following causes syphilis?
Antworten
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Treponema pallidum
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Leptospira interrogans
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Cytophaga spp.
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Borrelia burgdorferi
Frage 24
Frage
Which of the following is NOT assigned to the phylum Firmicutes?
Antworten
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Enterobacteriales
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Clostridiales
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Lactobacillales
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Mycoplasmatales
Frage 25
Frage
Which genus of bacteria is responsible for more illnesses and diseases than any other group of bacteria?
Antworten
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Streptococcus
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Enterococcus
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Staphylococcus
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Bacillus
Frage 26
Frage
What is the common cause of yeast infections?
Antworten
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Aspergillus fumigatus
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Candida albicans
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Histoplasma capsulatum
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Penicillium chryosogenum
Frage 27
Frage
Which of the following is the MOST common life-threatening infection in AIDS patients?
Antworten
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Aspergillus
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Candida
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Rhizopus
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Pneumocystis
Frage 28
Frage
What term refers to fungal infections deep within the body?
Antworten
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Systemic mycoses
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Cutaneous mycoses
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Subcutaneous mycoses
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Superficial mycoses
Frage 29
Frage
Algae with complex cell walls made of pectin and a layer of silica are
Antworten
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Diatoms
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Green algae
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Red algae
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Dinoflagellates
Frage 30
Frage
Which type of algae can live at greater ocean depths than other algae?
Antworten
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Blue algae
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Red algae
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Brown algae
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Green algae
Frage 31
Frage
The body of a multicellular algae is called a
Antworten
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Mycelium
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Hypha
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Pseudopod
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Thallus
Frage 32
Frage
Paralytic shellfish poisoning is caused by dinoflagellates that secrete a neurotoxin known as
Antworten
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Aflatoxin
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Endotoxin
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Exotoxin
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Saxitoxin
Frage 33
Frage
The feeding or growing stage of a protozoan is called the
Antworten
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Merozoite
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Hypnozoite
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Trophozoite
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Sporozoite
Frage 34
Frage
Amebic dysentery is caused by which of the following human pathogens?
Antworten
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Acanthamoeba
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Naegleria
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Entamoeba
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Trichomonas
Frage 35
Frage
Which of the following pairs is mismatched?
Antworten
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Mosquito-epidemic typhus
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Flea-plague
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Tick-Rocky Mountain spotted fever
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Mosquito-malaria
Frage 36
Frage
The sexual reproduction of Plasmodium takes place in the gut of a
Antworten
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Tick
-
Mosquito
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Human
-
Flea
Frage 37
Frage
Which of the following is the vector of Lyme disease?
Antworten
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Tick
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Head louse
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Mite
-
Mosquito
Frage 38
Frage
Arthropods that carry pathogenic microorganisms are called
Antworten
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Vehicles
-
Vectors
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Fomites
-
Reservoirs
Frage 39
Frage
Which of the following is TRUE regarding viruses?
Antworten
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Virions contain both DNA and RNA
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They multiply by binary fission
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They are sensitive to antibiotics
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They are not composed of cells
Frage 40
Frage
Which of the following is NOT a morphological type of virus?
Antworten
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Helical
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Polymorphic
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Polyhedral
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Enveloped
Frage 41
Frage
Viruses that infect bacteria are called
Antworten
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Bacteriophages
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Prions
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Viroids
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Antisense viruses
Frage 42
Frage
Capsids are composed of protein subunits known as
Antworten
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Capsomeres
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Spikes
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Envelopes
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Tail fibers
Frage 43
Frage
It is hypothesized that viroids evolved from
Antworten
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Viruses
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Exons
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Introns
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Prions
Frage 44
Frage
Prion diseases can be acquired via ALL of the following EXCEPT
Antworten
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Ingestion
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Inhalation
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Contaminated surgical instruments
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Transplanted nerve tissue
Frage 45
Frage
Scrapie is an example of a ________ disease found in sheep and caused by a prion.
Antworten
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Neurological
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Gastrointestinal
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Respiratory
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Cardiovascular
Frage 46
Frage
Viroids infect
Antworten
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Animals
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Protozoans
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Plants
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Bacteria
Frage 47
Frage
A viroid is a
Antworten
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Provirus
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Naked, infectious piece of RNA
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Capsid without a nucleic acid
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Complete, infectious virus particle
Frage 48
Frage
What percentage of cancers are known to be virus-induced?
Antworten
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10%
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25%
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50%
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100%
Frage 49
Frage
The ability of retroviruses to induce tumors is related to which enzyme?
Antworten
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Reverse transcriptase
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RNA polymerase
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DNA polymerase
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Protease
Frage 50
Frage
Cancer-causing alterations to cellular DNA affect parts of the genome called
Antworten
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Introns
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Oncogenes
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Exons
-
Promoters
Frage 51
Frage
Which of the following is NOT an effect of transformation?
Antworten
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T antigens appear in the nucleus of the cell
-
Cells lose their ability to divide
-
Cells tend to exhibit chromosomal abnormalities
-
Tumor-specific transplantation antigens appear on the cell surface.
Frage 52
Frage
Which of the following is an example of a latent viral infection in humans?
Antworten
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Measles
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HIV/AIDS
-
Shingles
-
Influenza
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