Question 1

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) All of the above
G) B) and D)

Question 2

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)  Errors can be made that lead to damaging or erroneous treatments.
D)  May result in quest for perfection that leads to unhealthy practices.
E)  All of the choices are ethical issues.F) A) and C)
G) C) and D)

Question 3

Cloning and sexual reproduction result in two genetically identical cells/organisms.

Accepted Answer

A) True 
 B)False

Question 4

Gene probes locate specific DNA sequences by

Accepted Answer

A)  binding with the complementary sequence in a genome.
B)  turning off genes in specialized cells.
C)  creating cloned genes.
D)  electrophoresis.
E)  All answers are correct.F) C) and D)
G) C) and E)

Question 5

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 D)

Question 6

To which types of organisms can cloning technology be applied?

Accepted Answer

A)  asexually reproducing organisms
B)  sexually reproducing organisms
C)  animals
D)  prokaryotes
E)  all extant and extinct organisms with DNA available to scientistsF) All of the above
G) A) and C)

Question 7

DNA probes can be used to detect the alleles for

Accepted Answer

A)  cystic fibrosis.
B)  hemophilia.
C)  All answers are correct.
D)  Tay-Sachs syndrome.
E)  sickle cell diseasE.F) C) and E)
G) A) and C)

Question 8

Although ethically questionable,it is possible to correct a genetic disorder through gene therapy in germline cells that give rise to gametes.

Accepted Answer

A) True 
 B)False

Question 9

Transfer of transgenes from crop plants to wild relatives can render chemicals like glyphospate useless.

Accepted Answer

A) True 
 B)False

Question 10

An organism that receives recombinant DNA

Accepted Answer

A)  has a genetic disease.
B)  is a transgenic organism.
C)  will develop cancer.
D)  is sterile.
E)  is a new species.F) C) and D)
G) B) and E)

Question 11

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) None of the above
G) A) and D)

Question 12

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) A) and B)
G) B) and D)

Question 13

Which of the following is not an application of DNA technology?

Accepted Answer

A)  selection of desired traits in breeding
B)  detection of genetic illnesses
C)  replacement of faulty copies of genes
D)  production of genetically modified crops with greater nutritional value
E)  determination of identity of criminals through DNA profilingF) A) and E)
G) None of the above

Question 14

Human DNA encodes

Accepted Answer

A)  All answers are correct.
B)  regulatory sequences that control gene expression.
C)  tRNA.
D)  rRNA.
E)  proteins.F) C) and D)
G) None of the above

Question 15

All of the human genome encodes proteins.

Accepted Answer

A) True 
 B)False

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

How can stem cells replace faulty cells in the body?

Accepted Answer

A)  Stem cells can be coaxed to differentiate into the needed specific cell type.
B)  Stem cells can mitotically divide,providing more stem cells to directly replace the faulty cells and their functions.
C)  Stem cells can meiotically divide,providing more stem cells to directly replace the faulty cells and their functions.
D)  Faulty cells can be coaxed to differentiate into stem cells and directly replace the faulty cells and their functions.
E)  Stem cells can directly serve as nerve or blood cells.F) C) and D)
G) D) and E)

Question 18

Electrophoresis is used in DNA sequencing

Accepted Answer

A)  to separate the DNA fragments.
B)  to make copies of the DNA fragments.
C)  to transfer DNA between organisms.
D)  to remove DNA from an organism.
E)  to mutate DNA.F) A) and E)
G) C) and D)

Question 19

A transgenic organism is an organism that receives all of its genes from only a single parent.

Accepted Answer

A) True 
 B)False

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) None of the above
G) A) and B)

Exam 11: Dna Technology

DNA probes can be used to detect the alleles for

Correct AnswerverifiedShow Answer

Cloning and sexual reproduction result in two genetically identical cells/organisms.

Correct AnswerverifiedShow Answer

Although ethically questionable,it is possible to correct a genetic disorder through gene therapy in germline cells that give rise to gametes.

Correct AnswerverifiedShow Answer

Gene probes locate specific DNA sequences by

Correct AnswerverifiedShow Answer

Human DNA encodes

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Transfer of transgenes from crop plants to wild relatives can render chemicals like glyphospate useless.

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

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

Correct AnswerverifiedShow Answer

All of the human genome encodes proteins.

Correct AnswerverifiedShow Answer

DNA technology is used to

Correct AnswerverifiedShow Answer

A transgenic organism is an organism that receives all of its genes from only a single parent.

Correct AnswerverifiedShow Answer

How can stem cells replace faulty cells in the body?

Correct AnswerverifiedShow Answer

An organism that receives recombinant DNA

Correct AnswerverifiedShow Answer

Electrophoresis is used in DNA sequencing

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

To which types of organisms can cloning technology be applied?

Correct AnswerverifiedShow Answer

DNA technology can result in

Correct AnswerverifiedShow Answer

Which of the following is not an application of DNA technology?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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