Multiple choice

Which of these descriptions is an example of genetic engineering?

  1. developing new fertilizers for growing corn plants

  2. inserting a gene for disease resistance into a corn plant

  3. crossing two corn plants that are resistant to pesticides

  4. breeding two corn plants that produce larger ears of corn
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B Correct answer
Explanation

Genetic engineering involves the direct manipulation of an organism's genome using biotechnology. Inserting a specific gene for disease resistance directly into a corn plant's DNA is a prime example of this technology, whereas selective breeding and developing fertilizers do not involve direct DNA manipulation.

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