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Which of the following best describes the ecological effects of GMOs?


A) Genetically modified crops that contain the Bt endotoxin may kill non-target insects.
B) Genetically modified crops that contain the Bt endotoxin may contribute to resistant strains of insects.
C) Genetically modified crops that contain the Bt endotoxin are relatively safe for the environment and have not shown a negative impact on species.
D) All of the answer choices are correct.

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In the first GMO experiment, researchers genetically modifiedE. coli by giving the bacteria the gene it needed to


A) produce insulin.
B) produce growth hormone.
C) provide antibiotic resistance.
D) produce a vaccine.

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One of the challenges that results from an increase in global population is the limitation of arable land. If the world population increases 30% by 2050, food production per acre of land would need to increase by


A) 70%.
B) 30%.
C) 50%.
D) 100%.

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Which part of the CRISPR complex tags the target gene to be destroyed?


A) Cas9
B) guide RNA
C) PAM sequence
D) matching genome sequence

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All genetically modified organisms are transgenic.

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______ combined genes from two viruses to create the first recombinant DNA which led to the foundation for the first GMO experiments.


A) Paul Berg
B) Herbert Boyer
C) Stanley Cohen
D) Robert Koch

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Wheat plants have been modified to increase the rate of photosynthesis to decrease the amount of CO2 in the atmosphere in response to the global concern of


A) climate change.
B) pest management.
C) the growth of the human population.
D) All of the answer choices are correct.

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Which of the following is a reason why plants produce oils? Check all that apply.


A) structural building materials
B) an energy source
C) defensive compounds
D) to produce DNA and RNA
E) to produce enzymes

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One next-generation GMO is the use ofMetarhizium pingshaense, which is a transgenic ______ that is used to treat malaria.

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The overall goal of genetically modifying plants is to decrease crop yield.

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Which of the following best explains the difference between selective breeding and genetic engineering?


A) Selective breeding manipulates the DNA of animals and plants, whereas genetic engineering manipulates the DNA of bacteria and fungi.
B) Genetic engineering has been going on for thousands of years, whereas selective breeding began in 1972.
C) Genetic engineering involves directly manipulating the DNA of organisms, whereas selective breeding makes use of existing, naturally present variation and the process of sexual reproduction.
D) Selective breeding is the process of locating a specific gene in one organism, whereas genetic engineering is the process that retrieves and inserts the gene into another organism.

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European corn crops have been genetically modified with the ______ gene fromBacillus thuringiensis which acts as an insecticide.


A) endotoxin
B) exotoxin
C) enterotoxin
D) cellulolytic toxin

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The testing and release of genetically modified organisms (GMOs) , in particular GM plants, is tightly regulated internationally to prevent any negative effects on the environment or human health. Which of the following statements support researchers' use of cisgenic organisms?


A) Cisgenic plants must be treated with pesticides in the same way as traditionally bred plants.
B) Cisgenic plants are only altered with genes from bacteria while transgenic plants are altered with animal genes.
C) The genome of a cisgenic plant, like the genome of a traditionally bred plant, is not altered with DNA from a different species.
D) Cisgenic plants produce crop yields that are similar to traditionally bred plants.

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Which of the following statements is an accurate description of the stages of gene expression?


A) The processes of transcription requires the copying of the entire genome and is then translated into amino acids.
B) The process of transcription makes mRNA from a segment of DNA, and is then translated into amino acids.
C) The process of transcription makes a DNA from a segment of RNA, and is then transated into amino acids.

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In what way have AquaAdvantage Salmon been genetically modified?


A) to produce higher levels of healthy fats
B) to withstand warmer water temperatures
C) to grow faster
D) to produce vaccines

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A gardener saves seeds from a red tomato plant in her garden. She plants the seeds the following summer and is surprised when the plant produces orange tomatoes. Then she remembers the red tomato plant was next to a plant that produced yellow tomatoes. This an example of a GMO.

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Several GMO plants have resistant traits. What is the resistant trait of alfalfa?


A) Disease resistance
B) Insect resistance, herbicide tolerance, and drought tolerance
C) Herbicide tolerance
D) Non-browning

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Genome editing can be accomplished by using


A) CRISPR.
B) DNA microarray.
C) natural selection.
D) PCR.

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Photosynthesis consists of two chemical reactions, the light-dependent and the light-independent reactions. What is the cellular function of CO2 in the photosynthesis reaction?


A) Carrier of high-energy electrons
B) The source of carbon used to build carbohydrates
C) The output of photosynthesis that is used to build carbohydrates
D) The source of electrons in the light-dependent reaction

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The ultimate goal(s) of successful plant GMOs is(are) to


A) grow more food on less land that requires less water and chemicals.
B) focus on reversing climate change.
C) develop plants that are heat and drought resistant.
D) All of the answer choices are correct.

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