Filters
Question type

Study Flashcards

Which description best fits the term xenotransplantation?


A) The use of animal organs in human transplant patients.
B) The use of human organs in animal transplants.
C) The use of animal DNA during genetic modification.
D) None of these descriptions fit xenotransplantation.

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

Which of the following molecules forms lengths of DNA with "sticky ends"?


A) DNA ligase
B) DNA polymerase
C) RNA polymerase
D) reverse transcriptase
E) restriction enzyme

F) C) and E)
G) A) and B)

Correct Answer

verifed

verified

All of the following are true regarding transgenic animals EXCEPT


A) foreign genes are micro-injected into eggs,fertilized in vitro,and the zygotes are placed in host females to develop.
B) the process has inserted bovine growth hormone into fish,cows,and other animals.
C) the process has been used to develop organisms that are partially animals and partially plant.
D) the product desired by the transgenic procedure may be secreted in the milk of female offspring.

E) B) and D)
F) A) and B)

Correct Answer

verifed

verified

What is the first step in producing a transgenic animal?


A) implantation of a donor egg into the host mother.
B) inject the desired gene(s) into a donor egg.
C) transgenic organism produces offspring that have the desired gene which can then produce more transgenic offspring.
D) transgenic eggs are harvested from the surrogate mother.

E) A) and B)
F) None of the above

Correct Answer

verifed

verified

Plants are being genetically engineered to have


A) a requirement for more fertilizer.
B) an increased water requirement.
C) the ability to produce human proteins.
D) increased susceptibility to herbicides.
E) All of the choices are correct.

F) A) and D)
G) C) and D)

Correct Answer

verifed

verified

A transgenic organism is


A) one that contains a gene from another organism of the same or different species.
B) one produced by cloning a mutant cell.
C) one that acts as the donor for DNA to be moved into another organism.
D) one produced by the polymerase chain reaction.
E) any genetically modified organism resulting from laboratory research.

F) A) and B)
G) B) and E)

Correct Answer

verifed

verified

It is estimated that humans have approximately ______ base pairs in our genome.


A) 3 billion
B) 2.5 million
C) 180 million
D) 12 trillion

E) A) and C)
F) All of the above

Correct Answer

verifed

verified

Gene therapy in humans has been used to treat


A) cystic fibrosis.
B) cancer.
C) inborn errors of metabolism.
D) All of the above.
E) Only two of the above.

F) B) and E)
G) A) and B)

Correct Answer

verifed

verified

The function of a vector in genetic engineering is to


A) cut DNA into many fragments.
B) introduce rDNA into a host cell.
C) link together newly joined fragments of DNA.
D) make millions of copies of a specific segment of DNA.
E) separate fragments of DNA by their length and electrical charges.

F) C) and E)
G) A) and C)

Correct Answer

verifed

verified

What is the function of gel electrophoresis in genetic engineering?


A) cut DNA into many fragments
B) carry DNA into a new cell
C) link together newly joined fragments of DNA
D) make millions of copies of a specific segment of DNA
E) separate fragments of DNA by their length and electrical charges

F) B) and E)
G) A) and C)

Correct Answer

verifed

verified

Gene therapy is being used in cancer patients to make healthy cells more tolerant of chemotherapy and to make tumors more vulnerable to chemotherapy.

A) True
B) False

Correct Answer

verifed

verified

Gene cloning can be accomplished by recombinant DNA technology and polymerase chain reactions.

A) True
B) False

Correct Answer

verifed

verified

When bone marrow stem cells are removed from the patient,infected with a virus that carries a normal gene,and returned to the patient,this is an example of


A) PCR.
B) chemotherapy.
C) viral disinfection.
D) in vivo gene therapy.
E) ex vivo gene therapy.

F) None of the above
G) A) and C)

Correct Answer

verifed

verified

Which of the following health disorders can be treated with ex vivo gene therapy?


A) Liver cells lack a protein that enables it to remove cholesterol from the blood which leads to high levels of cholesterol in the blood.This can increase the patients susceptibility to heart attacks.
B) The liver cells lack a protein that causes it to produce excessive cholesterol which leads to high levels of cholesterol in the blood.This can increase the patients susceptibility to heart attacks.
C) A gene is implanted that will code for the correct transmembrane carrier of the chloride ion.
D) Genes are implanted that make healthy cells more tolerant to chemotherapy while making the tumor cells more susceptible to chemotherapy

E) B) and D)
F) B) and C)

Correct Answer

verifed

verified

How are DNA microarrays used in the study of genomics?


A) They are used to identify the mutations that an individual possesses.
B) They can be used to determine which genes are turned on or off in an individual.
C) They can be used to help determine an individuals genetic profile.
D) All of these are uses for DNA microarrays.
E) None of these are uses for DNA microarrays.

F) A) and C)
G) D) and E)

Correct Answer

verifed

verified

The function of the polymerase chain reaction in genetic engineering is to


A) cut DNA into many fragments.
B) carry DNA into a new cell.
C) link together newly joined fragments of DNA.
D) make multiple copies of a specific segment of DNA.
E) separate fragments of DNA by their length and electrical charges.

F) B) and C)
G) C) and E)

Correct Answer

verifed

verified

DNA fingerprinting may be used to establish paternity.Analyze the banding pattern to determine the father of the child. DNA fingerprinting may be used to establish paternity.Analyze the banding pattern to determine the father of the child.   A) Male 1 B) Male 2


A) Male 1
B) Male 2

C) A) and B)
D) undefined

Correct Answer

verifed

verified

The function of DNA ligase in recombinant technology is to


A) cut DNA into many fragments.
B) carry DNA into a new cell.
C) seal DNA into an opening created by restriction enzymes.
D) make millions of copies of a specific segment of DNA.
E) separate fragments of DNA by their length and electrical charges.

F) A) and D)
G) B) and E)

Correct Answer

verifed

verified

Place the following steps in cloning DNA in the correct order 1 - use vector to deliver new rDNA to bacterial or other cells 2 - use restriction enzymes to cut a plasmid and add the desired gene 3 - isolate and cut out a desired gene using restriction enzymes 4 - use DNA ligase to seal the new gene 5 - allow bacterial cells to replicate and produce desired product


A) 1,2,3,4,5
B) 5,3,2,4,1
C) 2,5,3,1,4
D) 3,2,4,1,5

E) B) and D)
F) None of the above

Correct Answer

verifed

verified

Animal cloning is a difficult process with a low success rate.

A) True
B) False

Correct Answer

verifed

verified

Showing 21 - 40 of 48

Related Exams

Show Answer