Advanced English Reading and Comprehension

Genetically modiied organisms: Breadbasket or Pandora’s box? 49

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EXERCISE

Reading for details For each of the following sentences, choose the correct answer

to ill in the blank.

1. The development of high-yielding cereal hybrids led to a period of advancement and
   modernization in agriculture known as the Revolution.
   a. Industrial
   b. Green
   c. Agricultural


2. Organisms that can identify genes and cut them out of a chromosome are called
   .
   a. restriction enzymes
   b. ligases
   c. transgenic organisms


3. The irst transgenic crops were grown in.
   a. Canada
   b. Brazil and Argentina
   c. the United States and France


4. Beginning in the 1990s, the genetically engineered hormone BST was given to
   of dairy cows in the U.S.
   a. 10 percent
   b. 30 percent
   c. 50 percent


5. In 2006, transgenic crops were grown in countries.
   a. 12
   b. 22
   c. 200


6. The irst animal to be cloned was.
   a. a sheep
   b. a mouse
   c. a chicken