Genetics Review

Selective breeding is...

• a process to create an organism with desired traits from parents with those desired traits to benefit humans

• a natural method of producing offspring with desired traits

• creating a new species

• making organisms reproduce during times of stress

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An example of selective breeding is

• a dog breeder mating 2 dogs to make more dogs

• a farmer raising bees to pollinate the plants on his farm

• a person pollinates 2 white rose plants to create only white roses

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A problem with selective breeding is

• creating a new species

• loss of genetic variety

• extinction of a species

Evidence shows that the wolf is the ancestor of all the dog breeds shown below. How did this variation arise in a relatively short period of time?

• A.  Genetic manipulation

• Natural selection

• Chance

• Selective breeding

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The purpose of selective breeding is

• to obtain larger animals

• to obtain smaller animals

• to create animals with desirable traits

• to create animals with undesirable traits

When performing artificial selection of food crops, what might a farmer select? (Select all that apply.)

• The plant that produced the most grain

• The plant that produced the largest grain

• The plant that was most resistant to diseases

• The plant that was the smallest

• The most fragrant plant

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When DNA is manipulated and moved from one source to another it is known as

• genetic engineering

• electrophoresis

• gene therapy

• GMO

Making changes to the DNA of an organism is

• selective breeding

• artificial selection

• genetic engineering

• genetic transformation

Genetically Modified Organisms (GMOs) are...

• Always biologically modified in a laboratory

• Always bad for you

• Always free of pesticides

• Always selectively bred

Inserting a bioluminescence (glow) gene into fish is an example of...

• Genetic engineering

• Natural selection

• Artificial selection

• Selective breeding