OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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by not spraying the corn plants
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by soaking corn seeds in insect spray
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by changing the genetics of the corn plants
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by altering the temperature of soil so the insects will die
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Detailed explanation-1: -By adding a single gene from bacteria to certain crop varieties, for example, scientists gave them the ability to make a protein that kills many kinds of insects.
Detailed explanation-2: -Bacillus thuringiensis (Bt) is a soil bacterium that produces insecticidal toxins. Genes from Bt can be inserted into crop plants to make them capable of producing an insecticidal toxins and therefore resistant to certain pests. Corn hybrids with one or more Bt genes (Bt corn) are resistant to some important pests.
Detailed explanation-3: -Genetic engineering of crops for insect resistance is the introduction of specific DNA sequences into crop plants to enhance their resistance to insect pests. The DNA sequences used usually encode proteins with insecticidal activity, so that in plants which contain introduced DNA, an insecticidal protein is present.