FIU Ganter; Microbiology Exam 2 Global Learning – Flashcards
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In his expiriment in 1928, Griffith showed that genes from dead bacgteria can be transferred to live bacteria. What else happened in 1928?
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All of the above (Mickey Mouse was born, Penicillin, First air-conditioned office)
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In the US, FDA is the agency that regulates the use of genetically modified food. According to FDA regulations
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Food manufacturing companies do not have to label GM food
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What is correct for Napoleon Bonaparte
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All of the above (French emporer, Corsica, food preservation)
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Tetanus is most common in hot, damp, climates with soil rich in organic matter for spores to grow. This include African countries such as
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Ethiopia
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Interferon was describes by scientist at the National Institute for Medical Research in London in 1957. The Ebola virus
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was not known
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Multiple Sclerosis is more likely to occur among people living in
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Europe and North America
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Vaccine against tuberculosis was first used in 1921. What happened in that year?
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The first radio baseball game was broadcast in Pittsburgh
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These are the famous people who died from tuberculosis. Which is correct?
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Simon Bolivar - Venezuelan revolutionary leader
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Which of the following is not a method of adhesion?
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Cilia
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Antigenic determinants or epitopes are
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Specific regions on the antigen that are recognized by antibodies
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Plasma cells
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Both A and B is correct. A. Are formed from B cells B. Are responsible for production of antibodies.
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Labeled, known, short stretches of DNA used to detect a specific sequence of nucleotides in a mixture are known as
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Gene Probes
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Eurkaryotic chromosomes differ from prokaryotic chromosomes because only eurkaryotic chromosomes have
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histone proteins
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Each nucleotide is composed of
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one phosphate, one nitrogeneous base, one sugar
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Transformation is a process by which a bacterial cell undergoes genetic change through
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intake of foreign DNA
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The use of an organisms biochemical process to create a product is
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Biotechnology
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Sequences of DNA that are identical when read from 5' direction to 3' direction and on one strand and 3' to 5' direction on the other strand are
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Palindromes
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Which PCR step causes denaturations of double-stranded DNA
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Heating to 94 degrees C
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The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens
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Disinfection
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The UV light is used for sterilization of the air. Which of the following statements is not correct?
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It penetrates deep into the stubstrate that is sterilized.
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Which of the following microbial forms have the highest resistance to pysical and chemical controls?
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Bacterial endospores
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Minimum amount of microbes int he inoculating dose is the
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infectious dose
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An endotoxin is
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indicative of Gram Negative organisms
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First line of defense includes
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physical and chemical factors
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Diapedesis is a process by which
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white blood cells exit blood vessels
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What is not correct for histamine?
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Relaxes as smooths muscle of bronchi
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The initial encounter with an allergen is called the
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sensitizing dose
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Individuals with severe allergies
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Should carry epinephrine
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The region of DNA to which RNA polymerase binds to initiate transcriptions is called the
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Promoter
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Antibiotics that inhibit cell wall synthesis are
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Penicillin, Cephalosporin
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The drug that suppresses formation of blood cells is
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Chloramphenicol
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In precipitation reaction
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Soluble agents react with antibodies
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Antibody testing requires
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Either a known antigen or a known antibody
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What type of test will detect whole antigens?
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Aggultination
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Phenomenon of fluorescence was described in 1852 by Sir George Gabriel Stokes, a mathematician and physicist. He was a professor at what univeristy
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Cambridge, England
