Chapter 8 Review
These questions MAY BE similar to those found on your Lecture Midterm I exam. THERE MAY BE MORE THAN ONE CORRECT ANSWER FOR ANY OF THE QUESTIONS BELOW.
Griffith's work with S. pneumoniae showed that *
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Which of the results of Griffith's work was/were surprising? *
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What was the transforming principle Griffith thought was causing non-lethal bacteria to become lethal? *
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Hershey & Chase worked to identify whether DNA or protein is the hereditary material by working with which of the following *
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Hershey & Chase found that ______________ from their experiment ended up in bacterial cells. *
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What is the hereditary material of ALL cells? *
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Horizontal gene transfer includes which of the following? *
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Which of the following involves direct cell-to-cell contact via a pilus? *
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Which of the following involves the uptake of naked/free DNA? *
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Which of the following is virally-mediated uptake of DNA? *
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Which of the following produces DNA copies for daughter cells prior to binary fission? *
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Which of the following involves the transcription and translation of genes? *
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Which of the following are true of prokaryotes? *
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Plasmid types include which of the following?
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What does DNA polymerase bind to, in order to begin replication of a new DNA molecule? *
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A lack of a nucleus allows for what phenomenon in prokaryotes? *
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When a bacterium takes up foreign DNA from the environment, which of the following help get the DNA fragment into the chromosome of the cell? *
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Which of the following is the result of the mating of an F+ cell and a F- cell? *
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Which of the following is the result of the mating of an HFR cell and a F- cell? *
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_________ is a protein or enzyme that is always transcribed and translated into a functional protein. *
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_________ is a protein or enzyme that is always transcribed and translated into a functional protein that can be turned on or off by binding the allosteric site. *
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An operon includes proteins or enzymes which are __________________. *
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In a repressible operon, the repressor is transcribed in the _____ position. In other words, the repressor's natural state is _____. *
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In an inducible operon, the repressor is transcribed in the _____ position. In other words, the repressor's natural state is _____. *
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In an inducible operon, the operon is _____ in the absence of the effector molecule. *
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In a repressible operon, the operon is _____ in the absence of the effector molecule. *
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Inducible operons are common for _____ pathways.
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Repressible operons are common for _____ pathways.
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Which part of the operon is contains the repressor protein gene? *
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Which part of the operon is bound by RNA polymerase? *
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Which part of the operon is bound by the repressor? *
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Which part of the operon contains the genes whose transcription is being controlled? *
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Quorum sensing involves sensing what about the environment?
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Which of the following were discussed in class as responses to quorum sensing?
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All mutagens are carcinogens.
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All mutations are deleterious (bad).
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Mutations only happen when a mutagen is present.
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Which of the following is used to positively select for mutants produced by mutagens? *
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Positively screening for mutagens involves the mutation of bacteria from nutrient-dependent to wildtype (able to make their own food). What is the term used to describe a bacterium that needs to be provided with a particular nutrient for growth? *
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