Question 1

To screen the genome of a bacterium for a particular gene you would use _____that attach to complementary DNA sequences.

Accepted Answer

A) gels 
B) ligases 
C) DNA probes 
D) restriction enzymes 
A) gels 
B) ligases 
C) DNA probes 
D) restriction enzymes C

Question 2

Which of the following DNA fragments would bind to the short probe, AAG?

Accepted Answer

A) ATACCAGGC 
B) AAATGTATG 
C) AAATTCATG 
D) TTAGGTTTG 
A) ATACCAGGC 
B) AAATGTATG 
C) AAATTCATG 
D) TTAGGTTTG C

Question 3

Gel electrophoresis is used to

Accepted Answer

A) connect two DNA fragments to each other. 
B) snip DNA into smaller molecules. 
C) separate DNA molecules by size. 
D) determine the exact base sequence of a DNA molecule. 
A) connect two DNA fragments to each other. 
B) snip DNA into smaller molecules. 
C) separate DNA molecules by size. 
D) determine the exact base sequence of a DNA molecule. C

Question 4

Only 5 percent of processed foods found in U.S. grocery stores contain ingredients from genetically engineered plants.

Accepted Answer

A) True 
 B)False

Question 5

Viruses can be used to deliver "good" copies of genes to patients with certain genetic disorders.

Accepted Answer

A) True 
 B)False

Question 6

DNA technology can be used with all organisms because they all

Accepted Answer

A) contain plasmids. 
B) can contract the same diseases. 
C) share the same chemical DNA structure. 
D) contain the same genes. 
A) contain plasmids. 
B) can contract the same diseases. 
C) share the same chemical DNA structure. 
D) contain the same genes.

Question 7

Which of the following is the best way to make many copies of a vector containing recombinant DNA?

Accepted Answer

A) polymerase chain reaction 
B) DNA hybridization 
C) reproductive cloning 
D) DNA cloning 
A) polymerase chain reaction 
B) DNA hybridization 
C) reproductive cloning 
D) DNA cloning

Question 8

After gel electrophoresis of a DNA sample has been performed, the different bands found in one lane of a gel are

Accepted Answer

A) different-sized DNA molecules. 
B) the digested restriction enzyme. 
C) RNA from different cells. 
D) DNA hybridization sites. 
A) different-sized DNA molecules. 
B) the digested restriction enzyme. 
C) RNA from different cells. 
D) DNA hybridization sites.

Question 9

Gel electrophoresis uses

Accepted Answer

A) an electrical current. 
B) ligases. 
C) DNA polymerase. 
D) viral vectors. 
A) an electrical current. 
B) ligases. 
C) DNA polymerase. 
D) viral vectors.

Question 10

You are shown the following result of gel electrophoresis. Column 1 represents blood found on the arm of a crime victim, but it is not the victim's blood. The other columns are blood taken from various suspects. Which suspect's blood was found on the victim's arm?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
A) 2 
B) 3 
C) 4 
D) 5

Question 11

The figure below shows the first cycle in polymerase chain reaction (PCR).  
What is the role of the structure marked "P" in this figure?

Accepted Answer

A) The "P" represents the heat-tolerant DNA polymerase used in PCR to copy the gene of interest. 
B) The "P" represents a sequence of DNA complementary to parts of the gene being amplified that allows DNA polymerase to attach to the gene. 
C) The "P" indicates where on the DNA that DNA polymerase should terminate replication. 
D) The "P" indicates the location of the promoter for the gene being amplified. 
A) The "P" represents the heat-tolerant DNA polymerase used in PCR to copy the gene of interest. 
B) The "P" represents a sequence of DNA complementary to parts of the gene being amplified that allows DNA polymerase to attach to the gene. 
C) The "P" indicates where on the DNA that DNA polymerase should terminate replication. 
D) The "P" indicates the location of the promoter for the gene being amplified.

Question 12

There are no risks associated with DNA technology.

Accepted Answer

A) True 
 B)False

Question 13

Genetic engineering is a process in which specific sequences of ____________________ are deliberately isolated, modified, and inserted back into a host organism.

Accepted Answer

The answer of Genetic engineering is a process in which...

Question 14

The use of genetic engineering has social, economic, and ecological implications.

Accepted Answer

A) True 
 B)False

Question 15

The bacterium shown in the image below is a genetically modified organism.

Accepted Answer

A) True 
 B)False

Question 16

Examine the image below of a gel produced by the electrophoresis of DNA. The smallest fragment on the gel is the one indicated by the star.

Accepted Answer

A) True 
 B)False

Question 17

Genetically modified plants can pass their recombinant DNA to wild plants of the same species through their pollen.

Accepted Answer

A) True 
 B)False

Question 18

Genetic engineering has been used to mass produce insulin for diabetics.

Accepted Answer

A) True 
 B)False

Question 19

In RNA ____________________, the expression of a specific gene is blocked by small pieces of RNA.

Accepted Answer

The answer of In RNA ____________________, the expression of a...

Question 20

Deliberately transferring a gene from one species to another is an example of

Accepted Answer

A) constructing a gene library. 
B) genetic engineering. 
C) the polymerase chain reaction. 
D) cloning. 
A) constructing a gene library. 
B) genetic engineering. 
C) the polymerase chain reaction. 
D) cloning.

Exam 16: Dna Technology

To screen the genome of a bacterium for a particular gene you would use _____that attach to complementary DNA sequences.

Which of the following DNA fragments would bind to the short probe, AAG?

Gel electrophoresis is used to

Only 5 percent of processed foods found in U.S. grocery stores contain ingredients from genetically engineered plants.

Viruses can be used to deliver "good" copies of genes to patients with certain genetic disorders.

DNA technology can be used with all organisms because they all

Which of the following is the best way to make many copies of a vector containing recombinant DNA?

After gel electrophoresis of a DNA sample has been performed, the different bands found in one lane of a gel are

Gel electrophoresis uses

You are shown the following result of gel electrophoresis. Column 1 represents blood found on the arm of a crime victim, but it is not the victim's blood. The other columns are blood taken from various suspects. Which suspect's blood was found on the victim's arm?

The figure below shows the first cycle in polymerase chain reaction (PCR). What is the role of the structure marked "P" in this figure?

There are no risks associated with DNA technology.

Genetic engineering is a process in which specific sequences of ____________________ are deliberately isolated, modified, and inserted back into a host organism.

The use of genetic engineering has social, economic, and ecological implications.

The bacterium shown in the image below is a genetically modified organism.

Examine the image below of a gel produced by the electrophoresis of DNA. The smallest fragment on the gel is the one indicated by the star.

Genetically modified plants can pass their recombinant DNA to wild plants of the same species through their pollen.

Genetic engineering has been used to mass produce insulin for diabetics.

In RNA ____________________, the expression of a specific gene is blocked by small pieces of RNA.

Deliberately transferring a gene from one species to another is an example of

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