The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Choose the missing words of the phrase or sentence.

Genetically engineered foods are produced from crops whose genetic makeup has been altered through a process called recombinant DNA, or gene splicing, to give the plant a desirable trait. Genetically engineered foods are also known as biotech, bioengineered, and genetically modified, although "genetically modified" can also refer to foods from plants altered through other breeding methods. Scientists and farmers have been genetically modifying plants for hundreds of years. Hybrid corn and tangelos (hybrid of a tangerine and grapefruit), for example, are the result of genetic modification through traditional methods of plant breeding. And the many varieties of apples we eat today were produced through genetic modifi- cation.
（） engineered foods.