Question 1

Which of the following is the biggest challenge currently faced by scientists researching gene therapy?

Accepted Answer

A) identifying the location of genes that cause genetic disorders within the human genome 
B) finding a way to direct recombinant viruses to specific cells and/or locations in the genome 
C) determining the DNA sequence of the genes that cause genetic disorders 
D) finding a way to get recombinant DNA into human cells 
A) identifying the location of genes that cause genetic disorders within the human genome 
B) finding a way to direct recombinant viruses to specific cells and/or locations in the genome 
C) determining the DNA sequence of the genes that cause genetic disorders 
D) finding a way to get recombinant DNA into human cells

Question 2

In comparison to DNA technology, selective breeding is

Accepted Answer

A) less precise and slower. 
B) faster and more direct. 
C) slower and more accurate. 
D) faster and safer. 
A) less precise and slower. 
B) faster and more direct. 
C) slower and more accurate. 
D) faster and safer.

Question 3

The immune disorder adenosine deaminase (ADA)deficiency is the result of a mutation in one gene. How could gene therapy be used to treat this disorder?

Accepted Answer

A) Red blood cells could be induced to produce the protein encoded by the mutated ADA gene. 
B) Cells containing a corrected ADA gene could be injected into patients with ADA. 
C) The patients could swallow synthetic blood cells. 
D) Patients could be injected with a hybrid molecule made of the DNA and RNA of the normal ADA gene. 
A) Red blood cells could be induced to produce the protein encoded by the mutated ADA gene. 
B) Cells containing a corrected ADA gene could be injected into patients with ADA. 
C) The patients could swallow synthetic blood cells. 
D) Patients could be injected with a hybrid molecule made of the DNA and RNA of the normal ADA gene.

Question 4

The polymerase chain reaction (PCR)is used to

Accepted Answer

A) produce many copies of a selected DNA sequence. 
B) insert DNA from one organism into a new host. 
C) screen for a particular gene. 
D) deliver DNA products into a human patient. 
A) produce many copies of a selected DNA sequence. 
B) insert DNA from one organism into a new host. 
C) screen for a particular gene. 
D) deliver DNA products into a human patient.

Question 5

Human gene ____________________ seeks to correct genetic disorders by fixing the genes that cause the disorders.

Accepted Answer

The answer of Human gene ____________________ seeks to correct genetic...

Question 6

A vector is used to

Accepted Answer

A) transfer a gene to a specific cell in the body. 
B) separate DNA fragments from one another. 
C) probe DNA for faulty genes. 
D) attach DNA fragments to one another. 
A) transfer a gene to a specific cell in the body. 
B) separate DNA fragments from one another. 
C) probe DNA for faulty genes. 
D) attach DNA fragments to one another.

Question 7

The presence of double-stranded RNA stimulates the ____________________ system of the human body, making it hard to determine if RNAᵢ is actually silencing the targeted gene.

Accepted Answer

The answer of The presence of double-stranded RNA stimulates the...

Question 8

It is theoretically impossible for two individuals (other than identical twins)to have the same DNA fingerprint.

Accepted Answer

A) True 
 B)False

Question 9

Restriction enzymes work only on bacterial DNA.

Accepted Answer

A) True 
 B)False

Question 10

Among these DNA fragments, which would move most quickly during gel electrophoresis?

Accepted Answer

A) AATAAT 
B) AATAATAATAAT 
C) AAATTAAT 
D) AATAATAATAATAATAATAAT 
A) AATAAT 
B) AATAATAATAAT 
C) AAATTAAT 
D) AATAATAATAATAATAATAAT

Question 11

The DNA primers used in PCR are

Accepted Answer

A) identical to the entire base sequence of one strand of the DNA. 
B) produced when a gene of interest is read by restriction enzymes. 
C) attached to the gene of interest by ligase. 
D) complementary to DNA sequences at both ends of the DNA sequence of interest. 
A) identical to the entire base sequence of one strand of the DNA. 
B) produced when a gene of interest is read by restriction enzymes. 
C) attached to the gene of interest by ligase. 
D) complementary to DNA sequences at both ends of the DNA sequence of interest.

Question 12

Genetic engineering works only on animals and has not yet been successfully used on plants.

Accepted Answer

A) True 
 B)False

Question 13

DNA polymerase is used in the laboratory to

Accepted Answer

A) perform gel electrophoresis procedures. 
B) cure patients of certain genetic diseases. 
C) make many copies of a DNA sequence. 
D) attach DNA fragments to each other. 
A) perform gel electrophoresis procedures. 
B) cure patients of certain genetic diseases. 
C) make many copies of a DNA sequence. 
D) attach DNA fragments to each other.

Question 14

Because the ____________________ regions of DNA show the highest level of variation between individuals, they are most commonly analyzed during DNA fingerprinting.

Accepted Answer

The answer of Because the ____________________ regions of DNA show...

Question 15

The use of DNA analysis to identify individuals is known as

Accepted Answer

A) PCR testing. 
B) DNA fingerprinting. 
C) genetic modification. 
D) cloning. 
A) PCR testing. 
B) DNA fingerprinting. 
C) genetic modification. 
D) cloning.

Question 16

A DNA ____________________ that binds to a certain DNA sequence can be used to test for the presence of an allele or gene in a genome.

Accepted Answer

The answer of A DNA ____________________ that binds to a...

Question 17

The result of cloning is a piece of DNA that contains fragments from at least two different organisms.

Accepted Answer

A) True 
 B)False

Question 18

During gel electrophoresis, DNA moves from the

Accepted Answer

A) edges of the gel to the middle of the gel. 
B) middle of the gel to the edges. 
C) negative end of an electrical field to the positive end of the electrical field. 
D) positive end of an electrical field to the negative end of the electrical field. 
A) edges of the gel to the middle of the gel. 
B) middle of the gel to the edges. 
C) negative end of an electrical field to the positive end of the electrical field. 
D) positive end of an electrical field to the negative end of the electrical field.

Question 19

A restriction enzyme from a bacterium is able to cut a human's DNA because

Accepted Answer

A) bacteria and humans are both prokaryotes. 
B) all organisms use the same DNA bases. 
C) bacteria and humans have identical genomes. 
D) a given restriction enzyme can cut DNA at several different sequences. 
A) bacteria and humans are both prokaryotes. 
B) all organisms use the same DNA bases. 
C) bacteria and humans have identical genomes. 
D) a given restriction enzyme can cut DNA at several different sequences.

Question 20

In the first step of the polymerase chain reaction (PCR), the two strands of the DNA being amplified must be separated by exposing the DNA to high ____________________.

Accepted Answer

The answer of In the first step of the polymerase...

Exam 16: Dna Technology

Which of the following is the biggest challenge currently faced by scientists researching gene therapy?

In comparison to DNA technology, selective breeding is

The immune disorder adenosine deaminase (ADA)deficiency is the result of a mutation in one gene. How could gene therapy be used to treat this disorder?

The polymerase chain reaction (PCR)is used to

Human gene ____________________ seeks to correct genetic disorders by fixing the genes that cause the disorders.

A vector is used to

The presence of double-stranded RNA stimulates the ____________________ system of the human body, making it hard to determine if RNAᵢ is actually silencing the targeted gene.

It is theoretically impossible for two individuals (other than identical twins)to have the same DNA fingerprint.

Restriction enzymes work only on bacterial DNA.

Among these DNA fragments, which would move most quickly during gel electrophoresis?

The DNA primers used in PCR are

Genetic engineering works only on animals and has not yet been successfully used on plants.

DNA polymerase is used in the laboratory to

Because the ____________________ regions of DNA show the highest level of variation between individuals, they are most commonly analyzed during DNA fingerprinting.

The use of DNA analysis to identify individuals is known as

A DNA ____________________ that binds to a certain DNA sequence can be used to test for the presence of an allele or gene in a genome.

The result of cloning is a piece of DNA that contains fragments from at least two different organisms.

During gel electrophoresis, DNA moves from the

A restriction enzyme from a bacterium is able to cut a human's DNA because

In the first step of the polymerase chain reaction (PCR), the two strands of the DNA being amplified must be separated by exposing the DNA to high ____________________.

The Nature of Science and the Characteristics of Life

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Stem Cells, Cancer, and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

Dna and Genes

From Gene to Protein

How Evolution Works

Evolution of Populations

Speciation and the Origins of Biological Diversity

The Evolutionary History of Life

The Biosphere

Growth of Populations

Ecological Communities

Ecosystems

Global Change

Internal Organization and Homeostasis

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons, Muscles, and Movement

Defenses Against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

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