Viruses that have been used for gene therapy are:
A. adenovirus
B. lentivirus
C. retrovirus
D. herpes simplex virus
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Common types of GM food include:
A. fruits and vegetables
B. corn
C. soy
D. wheat
Derivative products of GM food include:
A. corn starch and starch sugars including syrups
B. lecithin
C. sugar
D. vegetable oil
The following genetically modified crops received marketing approval in 1995:
A. canola with modified oil composition
Bt maize, cotton resistant to the herbicide bromoxynil
C. Bt cotton, glyphosate-tolerant soybeans
D. virus-resistant squash, another delayed ripening tomato
GM foods have many advantages:
A. they can increase crop yield
B. they can reduce production costs
C. they can enhance crops' ability to resist pests and viruses
D. they can improve the storability of agricultural products
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