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Superweeds result from cross pollination of


A) transgenic cultivated and noncultivated plants in the field.
B) transgenic cultivated and noncultivated plants in the laboratory.
C) two transgenic cultivated plants in the field.
D) two transgenic cultivated plants in the lab.
E) two noncultivated plants in the field.

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

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Cloning results in two genetically identical cells/organisms; sexual reproduction results in genetically different cells/organisms.

A) True
B) False

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

A) True
B) False

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Genetically modified bacteria are responsible for producing


A) the amino acid phenylalanine used in the artificial sweetener aspartame.
B) human insulin to treat diabetes.
C) blood clotting factors to treat hemophilia.
D) fertility hormones for humans.
E) All answers are correct.

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

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

A) True
B) False

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


A) AATCGACTACCGTA.
B) AAUCGACUACCGUA.
C) UUAGCUGACGGCAU.
D) TTAGCTGATGGCAT.

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

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If farmers use glyphosate-resistant crops,they can spray their fields with a herbicides and it will not harm the plant.

A) True
B) False

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An example of DNA technology is


A) transferring genes from a bacterium to a fish.
B) sexual reproduction between two fish.
C) asexual reproduction in one bacterium.
D) a cat feeding upon a mouse.
E) a parasitic fungus infecting a bird.

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

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


A) preimplantation genetic diagnosis
B) genetic testing
C) gene therapy
D) somatic cell nuclear transfer
E) genetic transformation

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

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The results of DNA sequencing are used


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) D) and E)
G) B) and E)

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Cloning through DNA technology is most similar to


A) asexual reproduction.
B) sexual reproduction.
C) stem cells' replacement of faulty cells.
D) meiosis.
E) mate selection.

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

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An ill or injured patient may have suffered from damaged tissues that the cell cycle,including mitosis,won't naturally repair or replace.This may include damaged nerves,or skin,or muscle.A form of biotechnology that attempts to stimulate new cell divisions with application of cells that are genetically unspecialized,is 


A) stem cell research.
B) cloning.
C) preimplantation genetic diagnosis.
D) DNA profiling.
E) genetic engineering.

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

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An organism that receives recombinant DNA


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

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

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DNA technology can result in


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

F) B) and D)
G) C) and D)

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The technique CRISPR-Cas9 has great potential because it can


A) remove a gene or add new DNA to it.
B) make a chromosome visible. 
C) turn a cell into totipotent one.
D) make an embryo of one species develop into another species.
E) make a clone of an organism.

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

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Human DNA encodes


A) proteins.
B) regulatory sequences that control gene expression.
C) tRNA.
D) rRNA.
E) All answers are correct.

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

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DNA technology is used to


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) C) and E)

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


A) It may reduce human suffering through elimination of genetic disorders.
B) Cost may limit use to only wealthy people.
C) If no treatments exist, the knowledge may lead to depression.
D) It may result in a quest for perfection, for example, of appearance.
E) All of the choices are ethical issues.

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

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A couple,both carriers of cystic fibrosis (CF) alleles,can decrease their odds of having a child with CF by performing an in vitro fertilization procedure and screening the embryo for the CF alleles.This process is called


A) preimplantation genetic diagnosis.
B) gene therapy.
C) cloning and testing the unborn child.
D) polymerase chain reaction.
E) genetic typing.

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

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

A) True
B) False

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