AnswersFL-2000310-Biology 1 Sem 1 - FlexConsequences of DNA Technology

Consequences of DNA Technology Answers

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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
3

Which is an advantage of using DNA technology?

A
phytoremediation
B
gene transfer to nontarget species
C
unknown effects
D
reduced effectiveness of pesticides
5

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.
6

Which is a disadvantage of using genetic engineering?

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

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.
11

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.
12

In 1939, the use of DDT (a powerful synthetic chemical) as an insecticide was discovered. The United States adopted its widespread use, producing up to 100 million kilograms per year (200 million pounds per year). Twenty years later, severe side effects started to be reported as a result of DDT use. Which was an advantage of using DDT?

A
insect and pest populations decreased
B
birth defect rates increased
C
cancer rates increased
D
fertility rates decreased
13

Which is an advantage of using DNA technology?

A
phytoremediation
B
gene transfer to nontarget species
C
unknown effects
D
reduced effectiveness of pesticides
14

Which is a disadvantage of using DNA technology?

A
edible vaccines
B
phytoremediation
C
herbicide tolerance
D
gene transfer to nontarget species
15

There are economic concerns surrounding the products that have been genetically engineered for particular traits, including pharmaceuticals, crops, and enzymes that are used in industry and manufacturing processes. Which is least likely to be an economic concern that affects society?

A
patented products
B
birth defects
C
land use
D
cost of genetically engineered seeds
16

The chart shows the advantages and the disadvantages of using DNA technology.AdvantagesDisadvantagesAllergiesUnknown effectsPhytoremediationReduced effectiveness of pesticidesCold toleranceUnintended harmPharmaceuticals Which entry is in the wrong position in the table?

A
cold tolerance
B
allergies
C
unknown effects
D
phytoremediation
17

There are economic concerns surrounding the products that have been genetically engineered for particular traits, including pharmaceuticals, crops, and enzymes that are used in industry and manufacturing processes. Which is an economic concern that affects society?

A
patented products
B
birth defects
C
infertility
D
cancer
18

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.

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