Question 1

Which statement about the genetic modification of plants to provide insect resistance is incorrect?

Accepted Answer

A) inserting the Bt gene into plants allows them to make their own insecticide. 
B) the Bt gene product is toxic to humans and must be handled carefully. 
C) Bt plants benefit the environment. 
D) the protein from Bt has been used as an insecticide for over 30 years. 
A) inserting the Bt gene into plants allows them to make their own insecticide. 
B) the Bt gene product is toxic to humans and must be handled carefully. 
C) Bt plants benefit the environment. 
D) the protein from Bt has been used as an insecticide for over 30 years.

Question 2

Golden rice has been engineered to combat ____ deficiency.

Accepted Answer

A) iron 
B) iodine 
C) protein. 
D) vitamin A 
A) iron 
B) iodine 
C) protein. 
D) vitamin A

Question 3

Your mother was horrified to learn that the vast majority of processed foods in the US contain GM ingredients.What can you tell her to allay her fears of a negative health impact from these foods? If she is still concerned,how can you advise her to avoid them?

Accepted Answer

Since the labeling of GM foods requires

Question 4

Genetic modification improves crop yields by doing all of the following except:

Accepted Answer

A) allowing more seeds to be planted. 
B) creating plants that are resistant to herbicides. 
C) creating plants that can withstand drought. 
D) developing plants that use sunlight more efficiently. 
A) allowing more seeds to be planted. 
B) creating plants that are resistant to herbicides. 
C) creating plants that can withstand drought. 
D) developing plants that use sunlight more efficiently.

Question 5

Antibiotic resistance genes are often used as:

Accepted Answer

A) allergens 
B) plasmids 
C) marker genes 
D) toxins 
A) allergens 
B) plasmids 
C) marker genes 
D) toxins

Question 6

A set of techniques used to manipulate DNA for the purpose of changing the characteristics of an organism is

Accepted Answer

A) cloning. 
B) biotechnology. 
C) nuclear transfer. 
D) Gene doping. 
A) cloning. 
B) biotechnology. 
C) nuclear transfer. 
D) Gene doping.

Question 7

How can vitamin A deficiency be reduced through genetic engineering of staple foods like rice?

Accepted Answer

By adding the gene that codes

Question 8

Which statement about the FDA and the regulation of genetically modified crops is incorrect?

Accepted Answer

A) The safety of the food product is determined based on its characteristics,not the method used to produce it. 
B) Emphasis is placed on whether the food creates a new or increased allergenic risk. 
C) Premarket approval is required for all GM foods even if they contain only substances that are already in the food supply. 
D) The FDA is concerned with whether the plant is nutritionally different from traditional plants. 
A) The safety of the food product is determined based on its characteristics,not the method used to produce it. 
B) Emphasis is placed on whether the food creates a new or increased allergenic risk. 
C) Premarket approval is required for all GM foods even if they contain only substances that are already in the food supply. 
D) The FDA is concerned with whether the plant is nutritionally different from traditional plants.

Question 9

How many bases of DNA are needed to code for a single amino acid?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 20 
A) 2 
B) 3 
C) 4 
D) 20

Question 10

Using biotechnology,give some examples of how the quantity and quality of some foods has been enhanced.

Accepted Answer

Crop quantity can be increased by using

Question 11

Which statement about genetically modified foods and allergens is incorrect?

Accepted Answer

A) Biotechnology companies monitor the allergenic potential of proteins used for plant genetic engineering. 
B) Potentially allergenic soybeans were kept from entering the market in 1996. 
C) The products of new genes could cause people to have an allergic reaction to previously safe foods. 
D) Because of the mandatory testing system,individuals with food allergies can assume that new foods are safe. 
A) Biotechnology companies monitor the allergenic potential of proteins used for plant genetic engineering. 
B) Potentially allergenic soybeans were kept from entering the market in 1996. 
C) The products of new genes could cause people to have an allergic reaction to previously safe foods. 
D) Because of the mandatory testing system,individuals with food allergies can assume that new foods are safe.

Question 12

The National Academy of Sciences has concluded that the risks posed by genetically modified plants

Accepted Answer

A) are less serious than the risks posed by traditional plant breeding. 
B) are the same as the risks posed by traditional plant breeding. 
C) are primarily the risks of environmental damage. 
D) are primarily the risks to human health. 
A) are less serious than the risks posed by traditional plant breeding. 
B) are the same as the risks posed by traditional plant breeding. 
C) are primarily the risks of environmental damage. 
D) are primarily the risks to human health.

Question 13

The USDA regulation of GM foods is mostly concerned with

Accepted Answer

A) potential risks to agriculture or the environment. 
B) potential human health risks. 
C) the ability to sell agricultural products in the global marketplace. 
D) the regulation of pesticides in plants. 
A) potential risks to agriculture or the environment. 
B) potential human health risks. 
C) the ability to sell agricultural products in the global marketplace. 
D) the regulation of pesticides in plants.

Question 14

What proportion of consumers want to have genetically modified food products labeled as such?

Accepted Answer

A) 18%. 
B) 28% 
C) 2/3 
D) 3/4 
A) 18%. 
B) 28% 
C) 2/3 
D) 3/4

Question 15

Which statement about hybridization is incorrect?

Accepted Answer

A) Two related plants are cross-pollinated. 
B) All the offspring have the desired traits. 
C) The offspring have traits from both parents. 
D) Tangelos are hybrids. 
A) Two related plants are cross-pollinated. 
B) All the offspring have the desired traits. 
C) The offspring have traits from both parents. 
D) Tangelos are hybrids.

Question 16

The following statements about selective breeding and genetic modification are true except

Accepted Answer

A) both are intended to improve traits. 
B) both may result in food that is more nutritious. 
C) both are limited to whether two organisms are capable of cross-breeding. 
D) both may result in plants that can resist disease. 
A) both are intended to improve traits. 
B) both may result in food that is more nutritious. 
C) both are limited to whether two organisms are capable of cross-breeding. 
D) both may result in plants that can resist disease.

Question 17

Soybeans have been modified to contain ________ to help reduce the risk of heart disease.

Accepted Answer

A) less cholesterol 
B) more folate 
C) more monounsaturated fats 
D) more polyunsaturated fats 
A) less cholesterol 
B) more folate 
C) more monounsaturated fats 
D) more polyunsaturated fats

Question 18

A bacterial enzyme with the ability to cut DNA in a specific location is a

Accepted Answer

A) restriction enzyme. 
B) plasmid. 
C) recombinant enzyme. 
D) gene fragment. 
A) restriction enzyme. 
B) plasmid. 
C) recombinant enzyme. 
D) gene fragment.

Question 19

You are a member of an environmental group and have participated in programs to clean up coastal areas,reduce greenhouse gases and increase recycling.You are now receiving emails from the group agitating against GM foods.Give a fair representation of the environmental risks and how they are managed through government regulation.Explain why this is either adequate protection for the environment or not.

Accepted Answer

Several governmental agencies including

Question 20

A DNA molecule composed of DNA from two different species is a

Accepted Answer

A) clone 
B) gene 
C) chimera 
D) genome 
A) clone 
B) gene 
C) chimera 
D) genome

Focus on Biotechnology

Which statement about the genetic modification of plants to provide insect resistance is incorrect?

Golden rice has been engineered to combat ____ deficiency.

Your mother was horrified to learn that the vast majority of processed foods in the US contain GM ingredients.What can you tell her to allay her fears of a negative health impact from these foods? If she is still concerned,how can you advise her to avoid them?

Genetic modification improves crop yields by doing all of the following except:

Antibiotic resistance genes are often used as:

A set of techniques used to manipulate DNA for the purpose of changing the characteristics of an organism is

How can vitamin A deficiency be reduced through genetic engineering of staple foods like rice?

Which statement about the FDA and the regulation of genetically modified crops is incorrect?

How many bases of DNA are needed to code for a single amino acid?

Using biotechnology,give some examples of how the quantity and quality of some foods has been enhanced.

Which statement about genetically modified foods and allergens is incorrect?

The National Academy of Sciences has concluded that the risks posed by genetically modified plants

The USDA regulation of GM foods is mostly concerned with

What proportion of consumers want to have genetically modified food products labeled as such?

Which statement about hybridization is incorrect?

The following statements about selective breeding and genetic modification are true except

Soybeans have been modified to contain ________ to help reduce the risk of heart disease.

A bacterial enzyme with the ability to cut DNA in a specific location is a

A DNA molecule composed of DNA from two different species is a

Nutrition: Food for Health

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