Question 1

If the gene for a genetic disorder has the DNA sequence AATCGACTACCGTA,then the DNA probe has the sequence

Accepted Answer

A)  AATCGACTACCGTA.
B)  AAUCGACUACCGUA.
C)  UUAGCUGACGGCAU.
D)  TTAGCTGATGGCAT.E) B) and D)
F) B) and C)

Question 2

Growth of ______ does NOT include turning off genes.

Accepted Answer

A)  stem cells
B)  cardiac tissue
C)  red blood cells
D)  bacterial cells
E)  All answers are correct.F) A) and D)
G) C) and D)

Question 3

Which of the following is used to ensure absence of a specific genetic disorder through selection of embryos for in vitro fertilization?

Accepted Answer

A)  preimplantation genetic diagnosis
B)  genetic testing
C)  gene therapy
D)  somatic cell nuclear transfer
E)  All answers are correct.F) A) and D)
G) A) and C)

Question 4

DNA technology is used to

Accepted Answer

A)  copy DNA.
B)  sequence DNA nucleotides.
C)  search for specific sequences of DNA.
D)  turn genes on and off.
E)  All answers are correct.F) B) and C)
G) None of the above

Question 5

Which of the following is NOT an ethical issue surrounding the use of DNA technology in human medicine?

Accepted Answer

A)  May reduce human suffering through elimination of genetic disorders.
B)  Cost may limit use to only wealthy people.
C)  Early detection may result in termination of pregnancies with only a mild disorder.
D)  May result in quest for perfection that leads to unhealthy practices.
E)  All of the choices are ethical issues.F) D) and E)
G) None of the above

Question 6

In the section "Investigating Life: What Makes Us Human?",what did the scientists conclude?

Accepted Answer

A)  The two genomes are 96% alike.
B)  There are genetic differences in the noncoding regions.
C)  Coding regions are 99% alike.
D)  Humans have 46 chromosomes and chimps have 48 chromosomes.
E)  All answers are correct.F) C) and E)
G) A) and B)

Question 7

DNA technology can result in

Accepted Answer

A)  cloned pets.
B)  All answers are correct.
C)  tomatoes with an added gene that slows the rate of decay.
D)  detection of DNA at a crime scene.
E)  removal of genetic disorders.F) A) and B)
G) A) and C)

Question 8

Why is polymerase chain reaction (PCR) a very common tool since its invention in the 1980s?

Accepted Answer

A)  rapidly replicates DNA sequences with the use of bacterial cells
B)  rapidly replicates DNA sequences with the use of animal cells
C)  rapidly replicates DNA sequences without the use of living organisms
D)  eliminates need for recombinant DNA
E)  reduces the size of plasmids and speeds their insertionF) A) and B)
G) B) and E)

Question 9

The Taq _______ enzyme is used in polymerase chain reaction (PCR) because it remains stable at high temperatures.

Accepted Answer

A)  DNA polymerase
B)  RNA polymerase
C)  ribosomal RNA (rRN
A)  
D)  primase
E)  cytoskeletonF) A) and D)
G) A) and C)

Question 10

Genetic testing may lead to ethical issues,such as whether results should be used to determine who receives health insurance.

Accepted Answer

A) True 
 B)False

Question 11

In the section "Investigating Life: What Makes Us Human?",the scientists questioned what

Accepted Answer

A)  genetically differentiates humans from our closest relatives.
B)  caused human brains to be more advanced than other animals.
C)  caused humans to walk on two limbs compared to primates,who walk on four limbs.
D)  physically separates humans and chimpanzees from other primates.
E)  chromosomes all primates have in common.F) A) and E)
G) B) and C)

Question 12

Applications of DNA technology may result in negative effects,including

Accepted Answer

A)  All answers are correct.
B)  creating too much of a cellular product.
C)  insertion into an incorrect location in a chromosome.
D)  triggering cancer.
E)  triggering unwanted immune responses.F) A) and E)
G) D) and E)

Question 13

DNA probes are typically labeled with a radioactive isotope or fluorescent tag to locate within the genome after binding.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is used to replace faulty DNA by introducing alleles which do not result in a genetic disorder?

Accepted Answer

A)  gene therapy
B)  somatic cell nuclear transfer
C)  genetic testing
D)  preimplantation genetic diagnosis
E)  All answers are correct.F) None of the above
G) A) and B)

Question 15

A common feature of preimplantation genetic diagnosis,genetic testing,and gene therapy is

Accepted Answer

A)  the use of DNA technology to detect or treat genetic disorders.
B)  the destruction of faulty DNA in the human genome.
C)  the replacement of faulty DNA in the human genome.
D)  the use of stem cells.
E)  All answers are correct.F) C) and D)
G) A) and B)

Question 16

Growth and development of a normal cell differs from a stem cell because

Accepted Answer

A)  normal cells do not specialize into stem cells.
B)  stem cells do not specialize into normal cells.
C)  stem cells are not found in adult organisms.
D)  mature stem cells do not contain DNA.
E)  mature normal cells do not contain DNA.F) A) and B)
G) A) and C)

Question 17

In the section "Investigating Life: What Makes Us Human?",when future research discovers a region of the genome that differs between humans and chimpanzees it

Accepted Answer

A)  indicates a mutation has occurred.
B)  All answers are correct.
C)  shows precisely how human DNA differs from that of our closest relative.
D)  presents an explanation for a genetic disorder that occurs in only one of the two species.
E)  may occur in the coding or noncoding regions of the genomes.F) B) and E)
G) None of the above

Question 18

DNA technology can be applied to prevent,detect,and treat genetic diseases.

Accepted Answer

A) True 
 B)False

Question 19

The results of DNA sequencing are used

Accepted Answer

A)  to predict protein sequences.
B)  to compare DNA sequences between humans.
C)  to compare DNA sequences between different species.
D)  to compare DNA sequences between related extinct and extant organisms.
E)  All answers are correct.F) A) and B)
G) A) and C)

Question 20

Which of the following is used to detect the presence of specific genetic disorders in fetuses,newborns,children,and adults?

Accepted Answer

A)  somatic cell nuclear transfer
B)  preimplantation genetic diagnosis
C)  genetic testing
D)  gene therapy
E)  All answers are correct.F) A) and C)
G) B) and D)

Exam 11: DNA Technology

DNA technology can result in

Correct AnswerverifiedShow Answer

If the gene for a genetic disorder has the DNA sequence AATCGACTACCGTA,then the DNA probe has the sequence

Correct AnswerverifiedShow Answer

Which of the following is used to replace faulty DNA by introducing alleles which do not result in a genetic disorder?

Correct AnswerverifiedShow Answer

DNA probes are typically labeled with a radioactive isotope or fluorescent tag to locate within the genome after binding.

Correct AnswerverifiedShow Answer

DNA technology is used to

Correct AnswerverifiedShow Answer

Applications of DNA technology may result in negative effects,including

Correct AnswerverifiedShow Answer

Which of the following is used to ensure absence of a specific genetic disorder through selection of embryos for in vitro fertilization?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: What Makes Us Human?",when future research discovers a region of the genome that differs between humans and chimpanzees it

Correct AnswerverifiedShow Answer

The Taq _______ enzyme is used in polymerase chain reaction (PCR) because it remains stable at high temperatures.

Correct AnswerverifiedShow Answer

Growth and development of a normal cell differs from a stem cell because

Correct AnswerverifiedShow Answer

Growth of ______ does NOT include turning off genes.

Correct AnswerverifiedShow Answer

Which of the following is used to detect the presence of specific genetic disorders in fetuses,newborns,children,and adults?

Correct AnswerverifiedShow Answer

A common feature of preimplantation genetic diagnosis,genetic testing,and gene therapy is

Correct AnswerverifiedShow Answer

The results of DNA sequencing are used

Correct AnswerverifiedShow Answer

Why is polymerase chain reaction (PCR) a very common tool since its invention in the 1980s?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: What Makes Us Human?",the scientists questioned what

Correct AnswerverifiedShow Answer

Genetic testing may lead to ethical issues,such as whether results should be used to determine who receives health insurance.

Correct AnswerverifiedShow Answer

Which of the following is NOT an ethical issue surrounding the use of DNA technology in human medicine?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: What Makes Us Human?",what did the scientists conclude?

Correct AnswerverifiedShow Answer

DNA technology can be applied to prevent,detect,and treat genetic diseases.

Correct AnswerverifiedShow Answer

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