Question 1

The process of conjugation in bacteria requires that:

Accepted Answer

A)  two types of viruses be present
B)  the bacteria be deprived of nutrients
C)  there be naked DNA in the environment
D)  there be contact between donor and recipient cellsE) B) and D)
F) C) and D)

Question 2

This illustration represents:

Accepted Answer

A)  conjugation or transformation
B)  transduction or mutation
C)  genetic fusion
D)  protoplast fusion or gene amplificationE) None of the above
F) A) and D)

Question 3

A ________ is a genetic sequence able to move from one location in a chromosome to another.

Accepted Answer

A)  plasmid
B)  F factor
C)  transposon
D)  R factorE) C) and D)
F) A) and D)

Question 4

Soil bacteria are incredibly resistant to multiple antibiotics,presumably as a response to competition from bacteria that produce antibiotics. What are three ways that these antibiotic resistant genes could move from soil bacteria species to other species of bacteria? Briefly describe each gene transfer process.Name one or more factors that would affect the likelihood of this transfer occurring.

Accepted Answer

The three ways that genes can be passed ...

Question 5

Restriction enzymes come from _____.

Accepted Answer

A)  fungal cells
B)  viruses
C)  bacterial cells
D)  animal cellsE) A) and C)
F) B) and C)

Question 6

In Griffith's transformation experiments,which of the following did not take place?

Accepted Answer

A)  Live, capsulated pneumococci killed mice
B)  Live unencapsulated bacteria were able to retrieve the DNA from dead encapsulated bacteria and become virulent
C)  DNA was transferred from capsulated to unencapsulated bacteria using a bacteriophage
D)  Dead, capsulated pneumococci had no effect on miceE) B) and C)
F) All of the above

Question 7

Bacterial conjugation is an example of _____.

Accepted Answer

A)  transduction
B)  vertical gene transfer
C)  horizontal gene transfer
D)  bacterial transformationE) C) and D)
F) B) and D)

Question 8

In a culture containing both F⁻ and F⁺ cells,which of the following will occur if we wait long enough?

Accepted Answer

A)  No conjugation will occur
B)  The cells will all become genetically identical
C)  All F⁻ will become F⁺ cells
D)  All F⁺ cells will become F⁻ cellsE) C) and D)
F) A) and B)

Question 9

Plasmids can do which of the following?

Accepted Answer

A)  Direct synthesis of conjugation pili
B)  Provide resistance to certain antibiotics
C)  Induce the formation of tumors in plants
D)  All of the above are functions of various plasmidsE) A) and B)
F) B) and C)

Question 10

The genetic information needed for a cell to participate in conjugation resides in the DNA of a cell's _____.

Accepted Answer

A)  bacterial chromosome
B)  F plasmid
C)  F pilus
D)  mitochondriaE) B) and C)
F) A) and D)

Question 11

When cells conjugate for longer periods of time,which of the following will occur?

Accepted Answer

A)  Fewer genes will be transferred.
B)  More genes will be transferred.
C)  The same number of genes will be transferred.
D)  It is impossible to tell. Conjugation time and number of genes transferred are not related.E) A) and B)
F) A) and C)

Question 12

Recombinant bacteria have been used to produce _____.

Accepted Answer

A)  human growth hormone
B)  vaccines
C)  insulin
D)  all of the aboveE) A) and B)
F) A) and C)

Question 13

When genes are passed on from parent to offspring,which of the following events has taken place?

Accepted Answer

A)  horizontal gene transfer
B)  transduction
C)  vertical gene transfer
D)  retrograde gene transferE) A) and D)
F) C) and D)

Question 14

In specialized transduction the bacterial genes transduced tend to be:

Accepted Answer

A)  those genes in greatest use by the bacteria
B)  those genes that are currently not being transcribed
C)  those genes that are located close to the site of the prophage insertion
D)  those genes that are small enough to fit in the viral headE) C) and D)
F) A) and D)

Question 15

During the process of lysogeny:

Accepted Answer

A)  a phage integrates into the chromosome of the bacterium
B)  a bacterium takes up DNA from the media
C)  new phage particles are assembled in the host bacterium
D)  a bacterium is split open to release new phage particlesE) B) and D)
F) All of the above

Question 16

Hybridomas are used to produce large quantities of _____.

Accepted Answer

A)  restriction enzymes
B)  monoclonal antibodies
C)  antibiotics
D)  natural insecticidesE) C) and D)
F) B) and D)

Question 17

Hybridomas:

Accepted Answer

A)  are responsible for tumor formation in plants
B)  are resistant to monoclonal antibodies
C)  divide and grow for only a short period of time
D)  are the fusion of antibody producing plasma cell and a cancer cellE) B) and C)
F) C) and D)

Question 18

Gene amplification:

Accepted Answer

A)  allows transposition of genes from one location on a chromosome to another
B)  occurs when recombinant plasmids are induced to reproduce within cells at a rapid rate
C)  allows material from one strain to recombine with that from another strain
D)  complicate our ability to increase antibiotic productionE) A) and C)
F) None of the above

Question 19

In an experiment such as Griffith's pneumococcal experiment which of the following,when injected into a mouse,would result in its death?

Accepted Answer

A)  Heat-killed, smooth pneumoccocci
B)  Live, rough pneumococci
C)  A mixture of heat killed smooth pneumococci and live rough pneumococci
D)  A mixture of heat killed rough pneumococci and live rough pneumococciE) C) and D)
F) All of the above

Question 20

Natural selection:

Accepted Answer

A)  acts on alleles already present in the population
B)  explains how antibiotic resistance can be maintained in a population
C)  doesn't consider competition between strains
D)  two of the aboveE) B) and D)
F) All of the above

Exam 8: Gene Transfer and Genetic Engineering

Correct Answer
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The three ways that genes can be passed ...
View Answer

This illustration represents:

Correct Answer
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In an experiment such as Griffith's pneumococcal experiment which of the following,when injected into a mouse,would result in its death?

Correct Answer
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The process of conjugation in bacteria requires that:

Correct Answer
verified

A ________ is a genetic sequence able to move from one location in a chromosome to another.

Correct Answer
verified

Recombinant bacteria have been used to produce _____.

Correct Answer
verified

During the process of lysogeny:

Correct Answer
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When genes are passed on from parent to offspring,which of the following events has taken place?

Correct Answer
verified

When cells conjugate for longer periods of time,which of the following will occur?

Correct Answer
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Bacterial conjugation is an example of _____.

Correct Answer
verified

In Griffith's transformation experiments,which of the following did not take place?

Correct Answer
verified

Plasmids can do which of the following?

Correct Answer
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Hybridomas:

Correct Answer
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In specialized transduction the bacterial genes transduced tend to be:

Correct Answer
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Gene amplification:

Correct Answer
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The genetic information needed for a cell to participate in conjugation resides in the DNA of a cell's _____.

Correct Answer
verified

Natural selection:

Correct Answer
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In a culture containing both F⁻ and F⁺ cells,which of the following will occur if we wait long enough?

Correct Answer
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Restriction enzymes come from _____.

Correct Answer
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Hybridomas are used to produce large quantities of _____.

Correct Answer
verified

Exam 8: Gene Transfer and Genetic Engineering

Correct AnswerverifiedThe three ways that genes can be passed ...View AnswerShow Answer

This illustration represents:

Correct AnswerverifiedShow Answer

In an experiment such as Griffith's pneumococcal experiment which of the following,when injected into a mouse,would result in its death?

Correct AnswerverifiedShow Answer

The process of conjugation in bacteria requires that:

Correct AnswerverifiedShow Answer

A ________ is a genetic sequence able to move from one location in a chromosome to another.

Correct AnswerverifiedShow Answer

Recombinant bacteria have been used to produce _____.

Correct AnswerverifiedShow Answer

During the process of lysogeny:

Correct AnswerverifiedShow Answer

When genes are passed on from parent to offspring,which of the following events has taken place?

Correct AnswerverifiedShow Answer

When cells conjugate for longer periods of time,which of the following will occur?

Correct AnswerverifiedShow Answer

Bacterial conjugation is an example of _____.

Correct AnswerverifiedShow Answer

In Griffith's transformation experiments,which of the following did not take place?

Correct AnswerverifiedShow Answer

Plasmids can do which of the following?

Correct AnswerverifiedShow Answer

Hybridomas:

Correct AnswerverifiedShow Answer

In specialized transduction the bacterial genes transduced tend to be:

Correct AnswerverifiedShow Answer

Gene amplification:

Correct AnswerverifiedShow Answer

The genetic information needed for a cell to participate in conjugation resides in the DNA of a cell's _____.

Correct AnswerverifiedShow Answer

Natural selection:

Correct AnswerverifiedShow Answer

In a culture containing both F⁻ and F⁺ cells,which of the following will occur if we wait long enough?

Correct AnswerverifiedShow Answer

Restriction enzymes come from _____.

Correct AnswerverifiedShow Answer

Hybridomas are used to produce large quantities of _____.

Correct AnswerverifiedShow Answer

Correct Answer
verified
The three ways that genes can be passed ...
View Answer

Correct Answer
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