Advances in Genetics Answers

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1
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A researcher changes the DNA in a soybean plant so that it produces offspring with a resistance to weed killer.

A
genetic engineering
B
gene therapy
C
cloning
D
selective breeding
2
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Why do some people worry that eating genetically modified food may be harmful?

A
Altering the DNA of plants always reduces the nutritional content.
B
Genetic modification reduces the genetic variation in both plants and animals.
C
There have not been enough long-term studies to prove that this food is safe.
D
There have been many studies showing that these foods cause disease.
3

Finn listed two of the three steps involved in gene therapy.1. The normal allele is removed from the chromosome. 2. The normal allele is added to the cells of a person with the disorder.

A
The normal allele is copied before step 1.
B
The normal allele is copied after step 1.
C
The unhealthy gene is cut from the DNA before step 2.
D
The unhealthy gene is cut from the DNA after step 2.
4

Which best compares genetic engineering and cloning of animals?

A
Both result in offspring with a single, specific desirable trait.
B
Both result in offspring that are genetically identical to the original organism.
C
Both require that DNA be manipulated in some way.
D
Both require that only females are used in the process.
5

Scientists have cloned goats so they can take out a protein in the goats’ milk and use it to make medicine. The goats are raised in a laboratory. The medicine that is produced can help with certain diseases that affect humans.

A
The goats will have more genetic variation.
B
The goats will become infected with the human diseases.
C
There are unknown health risks to the goats.
D
There could be many health risks to drinking the goats’ milk.
6

selective breedingartificial selectioncloninggenetic engineering

A
selective breeding
B
artificial selection
C
cloning
D
genetic engineering
7

In recent years, a certain area of the world has experienced greater shifts in weather patterns. For example, there are many nights during which the temperature gets below freezing, but many days that are very warm. These shifts have made it difficult to grow and harvest crops.

A
increased nutritional value of crops
B
increased resistance to environmental factors
C
greater resistance to crop-killing diseases
D
greater resistance to insecticides
8

Which statements are true about genetic technologies? Check all that apply.All risk factors to the modified organisms are well known.Eating genetically modified organisms is always safe.Genetically engineered crops can be produced at lowered costs.Some genetically engineered crops are resistant to harsh weather.Genetically modified organisms may be harmful to people.

A
All risk factors to the modified organisms are well known.
B
Eating genetically modified organisms is always safe.
C
Genetically engineered crops can be produced at lowered costs.
D
Some genetically engineered crops are resistant to harsh weather.
E
Genetically modified organisms may be harmful to people.
9

Gene therapy has been used to treat cystic fibrosis. Cystic fibrosis is caused by a in a single gene.

Answer not available
10

Which best describes a difference between cloning plants and selectively breeding plants?

A
Cloning requires two parents and selective breeding requires one parent.
B
Cloning results in a genetically identical plant and selective breeding does not.
C
Cloning always requires that DNA be modified and selective breeding does not.
D
Cloning always results in larger plants and selective breeding always results in smaller plants.

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Advances in Genetics Answers — SY2025-26 …