OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In what way is genetic engineering of crops similar to the more traditional practice of artificial selection of crop varieties?
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Both methods result in a crop that has some desirable characteristic.
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Both techniques produce plants that have higher yields than previously.
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In both cases, two different crop plants are crossed to develop a new one.
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In both procedures, genes from unrelated organisms can be added to the plant.
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Explanation:
Detailed explanation-1: -Modern genetic engineering is more precise than selective breeding in the sense that biologists can modify just a single gene. Also, genetic engineering can introduce a gene between two distantly-related species, such as inserting a bacterial gene into a plant (figure 14.3. c).
Detailed explanation-2: -Selective breeding makes use of existing, naturally present gene variants in a species? and the natural process of breeding. Genetic engineering involves a direct change to an organism’s genome in the laboratory. Gene variants made through genetic engineering can be passed from one generation to the next.
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