Artificial Selection

1. The process of choosing parent organisms for desired characteristics is called

• natural selection

• Artificial selection

• random selection

• genetic manipulation

What is an example of artificial selection?

• Letting dogs choose their own mate

• Letting plants pollinate on their own

• Crossing a labrador and a poodle to create a labradoodle

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Which statement is true comparing natural selection and artificial selection?

• In natural selection, traits benefit humans and in artificial selection, the traits benefit the species

• In natural selection, traits benefit the species and in artificial selection, the traits benefit humans

• In natural and artificial selection, the process takes hundreds of years to occur

• In natural and artificial selection, nature determines what traits will be passed down to offspring.

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Artificial selection is also known as

• natural selection

• selective hearing

• genetic manipulation

• selective breeding

All artificial selection or "selective breeding" is good

• True

• False

Artificial Selection decreases diversity which is bad because

• organisms with same traits will refuse to reproduce with each other

• organisms with all the same traits are susceptible to extinction.

• organisms with the same traits will be very aggressive

• organisms with same traits collectively get smarter and will some day rule the world

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As scientists have developed more productive crop varieties, farmers have switched from growing many traditional varieties to new high-yield varieties. For example, in Peru, the Indians once grew 500 native varieties of potatoes. That number has been reduced to about twenty major potato varieties, worldwide. Why is it potentially dangerous to reduce the number of crop species in potatoes?

• it reduces the variety of crops available for human diets

• it requires a larger investment than small farmers can make

• it makes the overall crop more susceptible to pests or disease

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crossing two parents that have identical or similar sets of alleles

• inbreeding

• cloning

• hybridization

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crossing of two genetically different parents for getting the best traits from both parents

• inbreeding

• cloning

• hybridization

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What is this an example of?

• natural selection

• artificial selection

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