Artificial Selection Biology.

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Presentation transcript:

Artificial Selection Biology

Natural Selection vs Artificial Selection Click image to begin video

Comparing Natural and Artificial Selection From the video what were some examples/differences between the two? Natural Selection Artificial Selection 1. 2. 3. 1. 2. 3.

What is Artificial Selection? In artificial selection, nature provides the traits and humans choose them. Farmers could breed cows that produce the most milk or plant trees that produce the largest fruit.

Testing Artificial Selection Darwin tested this theory of artificial selection with plants and pigeons. He crossbred different types of pigeons to get different offspring.

Other examples: Thoroughbred racehorses are one example of artificial selection of animals.

The meats we eat are the result of the careful selective breeding of cows, pigs, sheep, and chickens. Other examples:

Genetic Drift Watch this video to learn more about genetic drift

The Evolution of Dogs

How does artificial selection help explain natural selection? How have so many different types of dogs all evolve from the wolf? Why do certain dogs look one way while others another? From one Breed…

Top 10 Foods That Originally Looked Totally Different Artificial Selection with your food? Top 10 Foods That Originally Looked Totally Different Click Picture to play video

Artificial Selection Worksheet, click image