Selective Breeding & Natural Selection

The purpose of selective breeding is to 

• Get bigger animals
• get smaller animals
• create animals with desirable traits
• create animals with bad traits

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All of the following statements are reasons for selective breeding except:

• To produce offspring with desirable characteristics
• Farmers increase their profit by improving crops
• To improve the quality of food products
• To increase migration patterns

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A farmer has bred his pineapple plants from the sweetest pineapples from his last harvest to get even sweeter pineapple plants. What is this an example of?

• Selective breeding
• Natural selection
• Extinction
• Mutagenesis

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Which term refers to a farmer choosing the best corn from this year to plant next year?

• natural selection
• selective breeding
• genetic engineering
• genetic transformation

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What is one of the processes involved in selective breeding?

• allowing organisms to reproduce without interference

• choosing individuals with desirable characteristics to be parents of the next generation

Organisms within a population have genetic differences in their traits called.

• Genotypes
• Variation
• Natural Selection
• Heterozygous

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Use the following table to answer the next question. A farmer wants to grow extra-large, sweet oranges.  Which plants should the farmer select to cross to get the desired set of characteristics?

• 1 and 2
• 2 and 4
• 1 and 3 
• 4 and 5

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Use the following table to answer the next question. A family wanted a cat but, due to allergies, they wanted a cat that shed the least amount of hair.  They also wanted a cat with a calm personality.  Which cats should the breeder select to be the parents of the requested cat?

• 2 and 4
• 2 and 3
• 1 and 4
• 1 and 3

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Use the following table to answer the next question. A farmer wants to create a watermelon that is sweet tasting but has a low quantity of seeds.  Which plants should the farmer select to cross to get the desired set of characteristics?

• 1 and 2
• 2 and 4
• 1 and 4
• 2 and 4

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Use the following table to answer the next question. A family visited a dog breeder and requested a puppy that had short fur and was friendly and lovable.  Which dogs should the breeder select to be the parents of the requested puppy?

• 1 and 2
• 2 and 3
• 1 and 4
• 2 and 4

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