Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Gel
electrophoresis is a technique used to _____. a. | clone chromosomes of various species | b. | cut DNA into
fragments of various sizes | c. | separate DNA fragments by charge and
length | d. | inject foreign DNA into animal and plant
cells | | |
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2.
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Recombinant DNA are currently used to produce _____. a. | clothing dye,
cheese, and laundry products | b. | human antibodies and vaccines | c. | crops that test
better and stay fresh longer | d. | all of these | | |
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3.
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Listed below are procedures involved in the production of a transgenic organism. From
the choices provided, select the sequence that represents the proper order of
events.
1. Recombinant DNA is transferred into a
bacterial cell.
2. A specific gene is identified in a
DNA sequence.
3. The DNA fragment is recombined into a
vector.
4. The DNA fragment to be inserted is
isolated. a. | 1, 2, 3,
4 | c. | 2, 4, 3,
1 | b. | 2, 3, 1,
4 | d. | 4, 1, 2,
3 | | | | |
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4.
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The
process used to separate DNA segments of different lengths is _____. a. | PCR | c. | gene
amplification | b. | gel electrophoresis | d. | all of these | | | | |
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5.
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The
Human Genome Project has involved sequencing and mapping the human genome. The most important benefit
of this information has been the diagnosis of genetic disorders. Once a genetic disorder is
diagnosed, ______ can be used as a possible treatment. a. | cell
cultures | c. | DNA
fingerprinting | b. | gene therapy | d. | PCR | | | | |
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6.
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The
effort to completely map and sequence the human genome will likely result in knowing the sequence of
the approximately _____ genes on the 46 human chromosomes. a. | 46 | c. | 35 000 to 40
000 | b. | 10
000 | d. | 3
billion | | | | |
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7.
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Which
of the following are applications of genetic engineering? a. | transgenic
bacteria in agriculture | c. | transgenic
bacteria in industry | b. | transgenic plants and animals | d. | all of these | | | | |
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Figure 13-8
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8.
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According to Figure 13-8, which are the parents of the child?
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9.
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According to Figure 13-8, which parents might give a false positive if only the longer
DNA fragments were analyzed?
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