Prescriptive Test — Cumulative exam Answers

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1
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Why did the United States ban the use of DDT?

A
It began mutating.
B
It became too costly to continue its use.
C
Its risks outweighed the benefits.
D
It was no longer effective.
2
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Which is an advantage of producing genetically engineered crops that have pest-resistant genes?

A
bioaccumulation of pesticides
B
allows farmers to grow any crop they want
C
reduces the use of pesticides for certain insects
D
gene transfer to nontarget species
3

Considering that nearly 85 percent of corn crops are genetically engineered, which impact does genetically engineered corn have on human health?

A
Only positives can come from this type of technology, as seen in the DDT study.
B
Human health will not be affected because scientists have studied this technology for over 50 years.
C
The genetically engineered corn has been proven to cause cancer in some human populations.
D
The long-term effects are unknown and have not been studied because it is a fairly new technology.
4

Which is a negative consequence of using DNA technology in forensics?

A
connecting parents to children through paternity testing
B
convicting guilty people of crimes based on DNA results
C
having a backlog of untested DNA samples
D
matching relatives to a missing person’s DNA
5

Which is a disadvantage of using DNA technology?

A
edible vaccines
B
phytoremediation
C
herbicide tolerance
D
gene transfer to nontarget species
6

Which is a synonym for genetic engineering?

A
DNA fingerprinting
B
recombinant DNA technology
C
biotechnology
D
restriction enzyme technology
7

Which best describes the advantage of pest resistance?

A
Pests can tolerate more pesticides.
B
Pesticides become less effective.
C
Farmers do not have to use harsh chemicals to save their crops.
D
Farmers can kills weeds without killing their cash crop.
8

Which is a disadvantage of using genetic engineering?

A
reduced effectiveness of pesticides
B
more pharmaceuticals
C
edible vaccines
D
drought and salinity tolerance
10

Which is an advantage of using DNA technology?

A
phytoremediation
B
gene transfer to nontarget species
C
unknown effects
D
reduced effectiveness of pesticides
13

Why might genetically engineering a crop to be herbicide resistant result in producing weeds that are herbicide resistant?

A
The DNA in herbicide resistant crops does not affect insects.
B
The weeds that are not affected by the herbicide are able to reproduce.
C
Insects that are not affected by the herbicide can pollinate new species of weeds.
D
The weeds will become tolerant to the herbicide through repeated exposure.

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