Question 1

Why is it necessary to "starve" the donor cells prior to reproductive cloning?

Accepted Answer

A)   to force the cells into G0 stage so that the nuclei removed from them will respond to cytoplasmic growth signals
B)   to force the enucleated egg cell into G0 stage so that it would accept the donor nucleus
C)   to lengthen the telomeres in the donor nucleus
D)   to make the nucleus "start over" in the S stage so that the nucleus will be diploid
E)   to make the nucleus "start over" in the S stage so that the nucleus will be haploidF) A) and C)
G) B) and D)

Question 2

Therapeutic cloning

Accepted Answer

A)   can produce clones of adult individuals.
B)   can be used to produce superior farm animals.
C)   can produce specialized cells to treat human disease.
D)   can be used to create new species of plants.
E)   can produce embryonic stem cells.F) B) and D)
G) A) and C)

Question 3

Which gene on chromosome 22 is believed to have made a difference in the evolution of humans compared to that of chimpanzees?
Rev: 02_07_2014_QC_44610

Accepted Answer

A)   The gene for proper speech development.
B)   The gene for smell.
C)   The gene for hearing.
D)   The gene for blood type.
E)   The gene for social behaviors.F) B) and E)
G) C) and D)

Question 4

Which of the following sequences of events in the production of recombinant DNA are in the correct order?

Accepted Answer

A)   cut DNA with restriction enzymes, mix DNA with plasmid DNA, add DNA ligase
B)   mix DNA with plasmid DNA, cut with restriction enzymes, add DNA ligase
C)   add DNA ligase, cut DNA with restriction enzymes, mix DNA with plasmid DNA
D)   mix DNA with plasmid DNA, add DNA ligase, cut with restriction enzymes
E)   cut with restriction enzymes, add DNA ligase, mix DNA with plasmid DNAF) C) and E)
G) All of the above

Question 5

_____ is the study of the structure and function of cellular proteins and their interactions; _______ may be employed to use computer algorithms to aid this process.
Rev: 02_07_2014_QC_44566

Accepted Answer

A)   Proteomics; bioinformatics
B)   Comparative genomics; bioinformatics
C)   Genomics; proteomics
D)   Proteomics; comparative genomics
E)   Comparative genomics; proteomicsF) B) and D)
G) C) and D)

Question 6

Transgenic plants may have genes from animals inserted into their DNA.

Accepted Answer

A) True 
 B)False

Question 7

How can comparative genomics assist in the treatment of HIV?

Accepted Answer

A)   The genome of HIV can now be compared to the human genome to find similarities between the two.
B)   Knowing the genome of HIV allows for the manufacture of designer drugs to treat specific strains.
C)   Understanding the genetic code of HIV allows scientists to replicate it in the laboratory.
D)   Understanding the evolution of HIV in an individual will help scientists understand how the virus responds to different drug regimes and will lead to better treatments.
E)   Knowing the proteins produced by HIV will allow the development of drugs to mimic those proteins.F) A) and E)
G) A) and B)

Question 8

Specialized cells differ from one another because

Accepted Answer

A)   they only express certain genes.
B)   they express all genes.
C)   they turn off gene expression once specialized.
D)   they may re-enter the cell cycle at any time.
E)   they do not express housekeeping genes.F) A) and B)
G) A) and D)

Question 9

Organisms that have had foreign genes inserted into them are called transgenic organisms.

Accepted Answer

A) True 
 B)False  True

Question 10

Which of the following is not an application of polymerase chain reaction?

Accepted Answer

A)   production of many copies of an unknown piece of DNA
B)   making copies of a foreign gene for use in making recombinant DNA
C)   DNA fingerprinting of a crime scene suspect
D)   amplifying mitochondrial DNA sequences
E)   linking two DNA molecules togetherF) A) and C)
G) A) and E) E

Question 11

In order to clone adult animals,scientists typically begin with

Accepted Answer

A)   an isolated sperm cell.
B)   an enucleated egg.
C)   an enucleated liver cell.
D)   a red blood cell.
E)   an enucleated sperm cell.F) A) and B)
G) B) and E)

Question 12

Which of the following is not an application of polymerase chain reaction?

Accepted Answer

A)   production of many copies of an unknown piece of DNA
B)   making copies of a foreign gene for use in making recombinant DNA
C)   DNA fingerprinting of a crime suspect
D)   linking two DNA molecules together
E)   amplifying mitochondrial DNA sequencesF) B) and E)
G) B) and C) D

Question 13

Which type of DNA is used during DNA fingerprinting?

Accepted Answer

A)   noncoding sections of DNA that consist of two to five bases repeated over and over again
B)   coding sections of DNA that consist of two to five bases repeated over and over again
C)   noncoding sections of DNA that consist of the same base repeated over and over again
D)   noncoding sections of RNA that consist of two to five bases repeated over and over again
E)   noncoding sections of DNA that only consist of adenine and guanineF) All of the above
G) C) and D)

Question 14

During recombinant DNA technology what structure acts as a carrier for the foreign DNA?

Accepted Answer

A)   vector
B)   restriction enzyme
C)   DNA ligase
D)   polymerase chain reaction
E)   DNA helicaseF) A) and C)
G) C) and D)

Question 15

The steps involved in a single PCR cycle,in the correct order,are

Accepted Answer

A)   cool to allow DNA strands to anneal, heat to allow primer to anneal, cool to allow DNA polymerase to copy DNA.
B)   heat to denature DNA strands, cool to allow primer to anneal and to allow DNA polymerase to copy DNA.
C)   heat to denature DNA strands and for primer to anneal, cool to allow DNA polymerase to copy DNA.
D)   cool to denature DNA strands, heat to allow primer to anneal, cool to allow DNA polymerase to copy DNA.
E)   cool to allow primer to anneal, heat to denature DNA strands, cool to allow DNA polymerase to copy DNA.F) A) and E)
G) None of the above

Question 16

When DNA fingerprinting is performed,why might an individual possess two different numbers of repeats for the same chromosomal region?

Accepted Answer

A)   Intergenic DNA may vary from one cell to another in the same individual.
B)   The individual has different numbers of the same repeated sequence on each homologous chromosome.
C)   The sample is contaminated with the DNA of another individual.
D)   Each sister chromatid of a chromosome may contain different numbers of repeats.
E)   It is not possible for this to occur.F) A) and B)
G) D) and E)

Question 17

How does DNA fingerprinting distinguish one individual from another?

Accepted Answer

A)   DNA fingerprinting makes use of noncoding sections of DNA that consist of two to five bases repeated over and over again which looks for the number of times such a sequence is repeated.
B)   DNA fingerprinting makes use of coding sections of DNA that consist of two to five bases repeated over and over again which looks for the number of times such a sequence is repeated.
C)   DNA fingerprinting makes use of noncoding sections of DNA that consist of a single base repeated over and over again which looks for the number of times such a sequence is repeated.
D)   DNA fingerprinting makes use of noncoding sections of RNA that consist of two to five bases repeated over and over again which looks for the number of times such a sequence is repeated.
E)   DNA fingerprinting makes use of coding sections of RNA that consist of two to five bases repeated over and over again which looks for the number of times such a sequence is repeated.F) B) and D)
G) B) and C)

Question 18

Which organisms have been modified to produce insulin,blood clotting factor VIII,and human growth hormone?

Accepted Answer

A)   bacteria
B)   goats
C)   cows
D)   corn
E)   soy beansF) A) and E)
G) A) and C)

Question 19

Cells from the root of a carrot may be used to generate an entire carrot plant.This illustrates that

Accepted Answer

A)   only cells of the root contain the plant's genes.
B)   every cell of the root contains all of the plant's genes.
C)   plants are easier to clone than animals.
D)   carrots may be used for therapeutic cloning.
E)   a carrot's roots contain all of the tissues of an adult plant.F) A) and D)
G) None of the above

Question 20

Based on genomic studies,when did a change in gene sequences occur that lead to a change in the way that the brain processes speech?

Accepted Answer

A)   between 1 and 6 million years ago
B)   between 4 and 9 million years ago
C)   between 10,000 and 100,000 years ago
D)   approximately 25,000 years ago
E)   approximately 12,000 years agoF) C) and D)
G) B) and E)

Exam 12: Biotechnology and Genomics

Why is it necessary to "starve" the donor cells prior to reproductive cloning?

Correct AnswerverifiedShow Answer

Therapeutic cloning

Correct AnswerverifiedShow Answer

Which gene on chromosome 22 is believed to have made a difference in the evolution of humans compared to that of chimpanzees? Rev: 02_07_2014_QC_44610

Correct AnswerverifiedShow Answer

Which of the following sequences of events in the production of recombinant DNA are in the correct order?

Correct AnswerverifiedShow Answer

_____ is the study of the structure and function of cellular proteins and their interactions; _______ may be employed to use computer algorithms to aid this process. Rev: 02_07_2014_QC_44566

Correct AnswerverifiedShow Answer

Transgenic plants may have genes from animals inserted into their DNA.

Correct AnswerverifiedShow Answer

How can comparative genomics assist in the treatment of HIV?

Correct AnswerverifiedShow Answer

Specialized cells differ from one another because

Correct AnswerverifiedShow Answer

Organisms that have had foreign genes inserted into them are called transgenic organisms.

Correct AnswerverifiedTrue

Which of the following is not an application of polymerase chain reaction?

Correct AnswerverifiedE

In order to clone adult animals,scientists typically begin with

Correct AnswerverifiedShow Answer

Which of the following is not an application of polymerase chain reaction?

Correct AnswerverifiedD

Which type of DNA is used during DNA fingerprinting?

Correct AnswerverifiedShow Answer

During recombinant DNA technology what structure acts as a carrier for the foreign DNA?

Correct AnswerverifiedShow Answer

The steps involved in a single PCR cycle,in the correct order,are

Correct AnswerverifiedShow Answer

When DNA fingerprinting is performed,why might an individual possess two different numbers of repeats for the same chromosomal region?

Correct AnswerverifiedShow Answer

How does DNA fingerprinting distinguish one individual from another?

Correct AnswerverifiedShow Answer

Which organisms have been modified to produce insulin,blood clotting factor VIII,and human growth hormone?

Correct AnswerverifiedShow Answer

Cells from the root of a carrot may be used to generate an entire carrot plant.This illustrates that

Correct AnswerverifiedShow Answer

Based on genomic studies,when did a change in gene sequences occur that lead to a change in the way that the brain processes speech?

Correct AnswerverifiedShow Answer

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_ is the study of the structure and function of cellular proteins and their interactions; ___ may be employed to use computer algorithms to aid this process. Rev: 02_07_2014_QC_44566

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D

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